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Medical Dictionary


tunica, pl .tunicae (too′ni-ka, -ke)
SYN: tunic. [L. a coat] t. adventitia SYN: adventitia. t. albuginea a dense white collagenous tunic surrounding a structure. t. albuginea of corpora cavernosa [TA] a strong, fibrous membrane enveloping the corpora cavernosa penis. SYN: t. albuginea corporum cavernosorum [TA] . t. albuginea corporis spongiosi [TA] SYN: t. albuginea of corpus spongiosum. t. albuginea corporum cavernosorum [TA] SYN: t. albuginea of corpora cavernosa. t. albuginea of corpus spongiosum [TA] the thick layer of fibrous tissue surrounding the corpus spongiosum penis; it is thinner than the corresponding layer around each corpus cavernosum. SYN: t. albuginea corporis spongiosi [TA] , fibrous tunic of corpus spongiosum. t. albuginea oculi SYN: sclera. t. albuginea ovarii [TA] SYN: t. albuginea of ovary. t. albuginea of ovary [TA] thin organ capsule of the ovary deep to the germinal epithelium. SYN: t. albuginea ovarii [TA] . t. albuginea testis [TA] SYN: t. albuginea of testis. t. albuginea of testis [TA] a thick white fibrous membrane forming the outer coat or capsule of the testis. SYN: t. albuginea testis [TA] , perididymis. t. carnea SYN: dartos fascia. t. conjunctiva [TA] SYN: conjunctiva. t. conjunctiva bulbi [TA] SYN: bulbar conjunctiva. t. conjunctiva palpebrarum [TA] SYN: palpebral conjunctiva. t. dartos [TA] SYN: dartos fascia. SEE ALSO: dartos muliebris. t. elastica t. media of large arteries. t. externa [TA] 1. the outer of two or more enveloping layers of any structure; 2. specifically, the outer fibroelastic coat of a blood or lymph vessel. SYN: t. extima [TA] . t. externa oculi SYN: fibrous layer of eyeball. t. externa thecae folliculi the external fibrous layer of the theca of a well-developed vesicular ovarian follicle; the cells and fibers are arranged in a concentric fashion. SYN: theca externa. t. extima [TA] SYN: t. externa. t. fibromusculocartilaginea bronchi [TA] SYN: fibromusculocartilagenous layer of bronchi. t. fibrosa [TA] SYN: fibrous capsule. t. fibrosa bulbi [TA] SYN: fibrous layer of eyeball. t. fibrosa hepatis [TA] SYN: fibrous capsule of liver (2) . t. fibrosa lienis SYN: fibrous capsule of spleen, fibrous capsule of spleen. t. fibrosa renis SYN: fibrous capsule of kidney. t. fibrosa splenis fibrous capsule of spleen. tunicae funiculi spermatici SYN: coverings of spermatic cord, under covering. Haller t. vasculosa SYN: vascular layer of eyeball. t. interna bulbi [TA] SYN: inner layer of eyeball. t. interna thecae folliculi the inner cellular and vascular layer of the vesicular ovarian follicle; there is evidence that the epithelioid cells produce estrogen and contribute to the formation of the corpus luteum after ovulation. SYN: theca interna. t. intima [TA] the innermost coat of a blood or lymphatic vessel; it consists of endothelium, usually a thin fibroelastic subendothelial layer, and an inner elastic membrane or longitudinal fibers. t. media [TA] the middle, usually muscular, coat of an artery or other tubular structure. SYN: media (1) . t. mucosa [TA] SYN: mucosa. t. mucosa bronchi [TA] SYN: mucosa of bronchi. t. mucosa cavitatis tympani [TA] SYN: mucosa of tympanic cavity. t. mucosa coli SYN: mucosa of colon. t. mucosa ductus deferentis [TA] SYN: mucosa of ductus deferens. t. mucosa esophagi [TA] SYN: mucosa of esophagus. t. mucosa gastrica [TA] SYN: mucosa of stomach. t. mucosa intestini crassi [TA] SYN: mucosa of large intestine. t. mucosa intestini tenuis [TA] SYN: mucosa of small intestine. t. mucosa laryngis [TA] SYN: mucosa of larynx. t. mucosa linguae [TA] SYN: mucosa of tongue. t. mucosa nasi [TA] SYN: mucosa of nose. t. mucosa oris [TA] SYN: mucosa of mouth. t. mucosa pelvis renalis [TA] SYN: mucosa of renal pelvis. t. mucosa pharyngis [TA] SYN: mucosa of pharynx. t. mucosa tracheae [TA] SYN: mucosa of trachea. t. mucosa tubae auditivae [TA] SYN: mucosa of pharyngotympanic (auditory) tube. t. mucosa tubae auditoriae SYN: mucosa of pharyngotympanic (auditory) tube. t. mucosa tubae uterinae [TA] SYN: mucosa of uterine tube. t. mucosa ureteris [TA] SYN: mucosa of ureter. t. mucosa urethrae femininae [TA] SYN: mucosa of female urethra. t. mucosa uteri [TA] SYN: endometrium. t. mucosa vaginae [TA] SYN: mucosa of vagina. t. mucosa vesicae biliaris [TA] SYN: mucosa of gallbladder. t. mucosa vesicae felleae mucosa of gallbladder, mucosa of gallbladder. t. mucosa vesicae urinariae [TA] SYN: mucosa of (urinary) bladder. t. mucosa vesiculae seminalis mucosa of seminal gland. t. muscularis [TA] SYN: muscular layer. t. muscularis bronchiorum [TA] SYN: muscular layer of bronchi. t. muscularis coli [TA] SYN: muscular layer of colon. t. muscularis ductus deferentis [TA] SYN: muscular layer of ductus deferens. t. muscularis esophagi [TA] SYN: muscular layer of esophagus. t. muscularis gastrica [TA] SYN: muscular layer of stomach. t. muscularis glandulae vesiculosae [TA] SYN: muscular layer of seminal gland. t. muscularis intestini crassi [TA] SYN: muscular layer of large intestine. t. muscularis intestini tenuis [TA] SYN: muscular layer of small intestine. t. muscularis partis intermediae urethrae masculinae [TA] SYN: muscular layer of intermediate part of (male) urethra. t. muscularis partis prostaticae urethrae masculinae [TA] SYN: muscular layer of prostatic urethra. t. muscularis partis spongiosae urethrae masculinae [TA] SYN: muscular layer of spongy (male) urethra. t. muscularis pelvis renalis [TA] SYN: muscular layer of renal pelvis. t. muscularis pharyngis [TA] SYN: muscular layer of pharynx. t. muscularis recti [TA] SYN: muscular layer of rectum. t. muscularis tracheae [TA] SYN: muscular layer of trachea. t. muscularis tubae uterinae [TA] SYN: muscular layer of uterine tube. t. muscularis ureteris [TA] SYN: muscular layer of ureter. t. muscularis urethrae femininae [TA] SYN: muscular layer of female urethra. t. muscularis urethrae masculinae [TA] SYN: muscular layer of male urethra. t. muscularis uteri [TA] SYN: myometrium. t. muscularis vaginae [TA] SYN: muscular layer of vagina. t. muscularis ventriculi SYN: muscular layer of stomach. t. muscularis vesicae biliaris [TA] SYN: muscular layer of gallbladder. t. muscularis vesicae felleae muscular layer of gallbladder. t. muscularis vesicae urinariae [TA] SYN: muscular layer of urinary bladder. t. nervea an older term, formerly used to designate the retina exclusive of the layer of rods and cones. SYN: Brücke tunic. t. propria the special envelope of a part as distinguished from the peritoneal or other investment common to several parts. t. propria corii SYN: stratum reticulare corii. t. propria lienis SYN: fibrous capsule of spleen. t. reflexa the reflected layer of the t. vasculosa testis that lines the scrotum. t. sclerotica SYN: sclera. t. serosa [TA] SYN: serosa. t. serosa coli SYN: serosa of large intestine. t. serosa esophagi [TA] SYN: serosa of esophagus. t. serosa gastricae [TA] SYN: serosa of stomach. t. serosa hepatis [TA] SYN: serosa of liver. t. serosa intestini crassi [TA] SYN: serosa of large intestine. t. serosa intestini tenuis [TA] SYN: serosa of small intestine. t. serosa pericardii serosi [TA] SYN: serosa of serous pericardium. t. serosa peritonei [TA] SYN: serosa of peritoneum. t. serosa pleurae perietalis [TA] SYN: serosa of parietal pleura. t. serosa pleurae visceralis [TA] SYN: serosa of visceral pleura. t. serosa splenis [TA] SYN: serosa of the spleen. t. serosa tubae uterinae [TA] SYN: serosa of uterine tube. t. serosa uteri [TA] SYN: perimetrium, serosa of uterus. t. serosa ventriculi SYN: serosa of stomach. t. serosa vesicae biliaris [TA] SYN: serosa of gallbladder. t. serosa vesicae felleae serosa of gallbladder. t. serosa vesicae (urinariae) [TA] SYN: serosa of (urinary) bladder. t. spongiosa urethrae femininae [TA] SYN: spongy layer of female urethra. t. spongiosa vaginae [TA] SYN: spongy layer of vagina. t. submucosa SYN: submucosa. t. urethrae masculinae [TA] SYN: mucosa of male urethra. t. vaginalis communis SYN: internal spermatic fascia. t. vaginalis testis the serous sheath of the testis and epididymis, derived from the peritoneum; it consists of outer parietal and inner visceral serous layers. t. vasculosa any vascular layer. t. vasculosa bulbi [TA] SYN: vascular layer of eyeball. t. vasculosa lentis a nutrient vascular layer enveloping the lens of the eye in the fetus. t. vasculosa oculi SYN: vascular layer of eyeball. t. vasculosa testis the vascular layer enveloping the testis beneath the t. albuginea. t. vasculosa testis [TA] SYN: vascular layer of testis. t. vitrea SYN: posterior limiting lamina of cornea.

tunnel (tun′el)
An elongated passageway, usually open at both ends. aortico-left ventricular t. congenital connection between the aorta above exit of coronary arteries and the left ventricle. carpal t. [TA] the passageway deep to the transverse carpal ligament between tubercles of the scaphoid and trapezoid bones on the radial side and the pisiform and hook of the hamate on the ulnar side, through which the median nerve and the flexor tendons of the fingers and thumb pass; compression of the median nerve may occur here (carpal t. syndrome). SYN: canalis carpi [TA] , carpal canal (1) . Corti t. the spiral canal in the organ of Corti, formed by the outer and inner pillar cells or rods of Corti; it is filled with fluid and occasionally crossed by nonmedullated nerve fibers. SYN: Corti canal.

Edward B., 20th century U.S. anesthesiologist. See T. needle.

turanose (toor′a-nos)
A reducing disaccharide.

Turbatrix (ter-ba′triks)
A genus of free-living nematodes in the family Cephalobidae. [L. turbare, to disturb] T. aceti a species found in old vinegar or in rotting fruits and vegetables and occasionally as a contaminant in laboratory solutions. SYN: vinegar eel.

turbid (ter′bid)
Cloudy, as by sediment or insoluble matter in a solution. [L. turbidus, confused, disordered]

turbidimeter (ter-bi-dim′e-ter)
An instrument for measuring turbidity.

turbidimetric (ter′bid-i-met′rik)
Pertaining to the measurement of turbidity.

turbidimetry (ter-bi-dim′e-tre)
A method for determining the concentration of a substance in a solution by the degree of cloudiness or turbidity it causes or by the degree of clarification it induces in a turbid solution. [turbidity + G. metron, measure]

turbidity (ter-bid′i-te)
The quality of being turbid, of losing transparency because of sediment or insoluble matter. [L. turbiditas, fr. turbidus, turbid]

turbinal (ter′bi-nal)
SYN: turbinated body (1) .

turbinate (ter′bi-nat)
A bone shaped like a top, especially referring to turbinated bones. See inferior nasal concha, middle nasal concha, superior nasal concha, supreme nasal concha.

turbinated (ter′bi-nat-ed)
Scroll-shaped. [L. turbinatus, shaped like a top]

turbinectomy (ter′bi-nek′to-me)
Surgical removal of a turbinated bone. [turbinate + G. ektome, excision]

turbinotome (ter′bi-no-tom)
An instrument for use in turbinotomy or turbinectomy.

turbinotomy (ter′bi-not′o-me)
Incision into or excision of a turbinated body. [turbinate + G. tome, incision]


Ludwig, Austrian neurologist, 1810–1868. See T. bundle, T. column, T. degeneration, T. tract.

Turcot syndrome
See under syndrome.

turgescence (ter-jes′ens)
SYN: tumescence. [L. turgesco, to begin to swell, fr. turgeo, to swell]

turgescent (ter-jes′ent)
SYN: tumescent.

turgid (ter′jid)
SYN: tumid. [L. turgidus, swollen, fr. turgeo, to swell]

turgor (ter′gor)
Fullness. [L., fr. turgeo, to swell] t. vitalis the normal fullness of the capillaries.

turista (too-res′ta)
Term for traveler's diarrhea, of Mexican derivation. [Sp. tourist]

Wilhelm, Austrian hematologist, 1871–1916. See T. cell, T. leukocyte.

Siegmund, 20th century Swiss ophthalmologist. See Ehrlich-T. line.

turkey red (ter′ke)
SYN: madder.

turmeric (ter′mer-ik)

turn (tern)
To revolve or cause to revolve; specifically, to change the position of the fetus within the uterus to convert a malpresentation into a presentation permitting normal delivery. [A.S. tyrnan]

George Grey, English surgeon, 1877–1951. See Grey T. sign.

Henry H., U.S. endocrinologist, 1892–1970. See T. syndrome.

Joseph G., English dentist, &dag;1955. See T. tooth.

Sir William, English anatomist, 1832–1916. See intraparietal sulcus of T., T. sulcus.

turnover (tern′o-ver)
The quantity of a material metabolized or processed, usually within a given length of time.

turpentine (ter′pen-tin)
An oleoresin from Pinus palustris and other species of Pinus; source of t. oil and a constituent of stimulating ointments. [G. terebinthinos, pertaining to terebinthos, the terebinth tree] Canada t. SYN: Canada balsam. Chian t. an exudation from Pistacia terebinthus, a small tree of Chios and regions eastward; on exposure to air it thickens and forms translucent yellow masses similar to mastic. larch t. a transparent, yellowish, thick liquid, the oleoresin obtained from Larix europaea (family Pinaceae). SYN: Venice t.. Venice t. SYN: larch t.. white t. t. from Pinus palustris.

turpentine oil
A volatile oil, distilled from turpentine, that has been used as a diuretic, carminative, vermifuge, expectorant, rubefacient, and counterirritant. SYN: oleum terebinthinae, turpentine spirit. rectified t. obtained by treating t. with sodium hydroxide, and redistilling; used externally as a counterirritant.

turpentine spirit
SYN: turpentine oil.

turps (terps)
Popular name for turpentine oil.

turricephaly (toor-i-sef′a-le)
SYN: oxycephaly. [L. turris, tower, + G. kephale, head]

turunda, pl .turundae (too-run′da, -de)
A surgical tent, gauze drain, or tampon. [L.]

tussal (tus′al)
SYN: tussive.

tussicular (tu-sik′u-lar)
SYN: tussive. [L. tussicularis, fr. tussicula, a slight cough, dim. of tussis, cough]

tussiculation (tu-sik′u-la′shun)
A hacking cough.

tussigenic (tus′i-jen′ik)
Causing cough. [L. tussis, cough, + -gen, producing]

tussis (tus′is)
A cough. [L.]

tussive (tus′siv)
Relating to a cough. SYN: tussal, tussicular. [L. tussis, a cough]

tutamen, pl .tutamina (too-ta′men, -ta′mi-na)
Any defensive or protective structure. [L. protection] tutamina cerebri the scalp, cranium, and cerebral meninges. tutamina oculi the eyebrows, eyelids, and eyelashes.

James P., U.S. surgeon, 1857–1913. See T. proctoscope.

Abbreviation for transureteroureterostomy.

Abbreviation for time-varied gain.

SYN: Chlamydia pneumoniae. [after the laboratory designations of the first two isolates, TW-83 and AR-39]

Charles H., U.S. orthodontist, 1895–1970. See T. edgewise treatment, T. triangle.

tweezers (twe′zerz)
An instrument with pincers that are squeezed together to grasp or extract fine structures. [A.S. twisel, fork]


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