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Medical Dictionary - Dictionary of Medicine and Human Biology


Medical Dictionary


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hematinic (he-ma-tin′ik, hem-a-)
1. Improving the condition of the blood. 2. An agent that improves the quality of blood by increasing the number of erythrocytes and/or the hemoglobin concentration. SYN: hematic (2) . SYN: hematonic.

hemato-
Combining form denoting blood. SEE ALSO: hem-, hemat-, hemo-. [G. haima (haimat-)]

hematobilia (he′ma-to-bil′e-a, hem′a-)
SYN: hemobilia.

hematobium (he-ma-to′be-um, hem-a-)
Any microorganism that is parasitic in the blood, especially an animal form or hemozoon. [hemato- + G. bios, life]

hematoblast (he′ma-to-blast, hem′a-)
A primitive, undifferentiated form of blood cell from which erythroblasts, lymphoblasts, myeloblasts, and other immature blood cells are derived; probably identical or closely similar to hemocytoblast and hemohistioblast; in normal bone marrow, present only in small numbers and difficult to identify in smears, inasmuch as hematoblasts are fragile and easily disintegrated; when marrow is hyperplastic, they may be observed in small groups. [hemato- + G. blastos, germ] Hayem h. obsolete term for platelet.

hematocele (he′ma-to-sel, hem′a-)
1. SYN: hemorrhagic cyst. 2. Effusion of blood into a canal or a cavity of the body. 3. Swelling due to effusion of blood into the tunica vaginalis testis. [hemato- + G. kele, tumor] pelvic h. intraperitoneal effusion of blood into the pelvis. pudendal h. effusion of blood into the labium majus.

hematocephaly (he′ma-to-sef′a-le, hem′a-)
Intracranial effusion of blood, commonly in a fetus. [hemato- + G. kephale, head]

hematochezia (he′ma-to-ke′ze-a, hem′a-)
Passage of bloody stools, in contradistinction to melena, or tarry stools. [hemato- + G. chezo, to go to stool]

hematochlorin (he′ma-to-klo′rin, hem′a)
A green coloring matter derived from hemoglobin obtained from the placenta. [hemato- + G. chloros, light green + -in]

hematochyluria (he′ma-to-ki-loo′re-a, hem′a-)
Presence of blood as well as chyle in the urine. [hemato- + G. chylos, juice, + ouron, urine]

hematocolpometra (he′ma-to-kol′po-me′tra)
Accumulation of blood in the uterus and vagina resulting from an imperforate hymen or other lower vaginal obstruction. [hemato- + G. kolpos, vagina, + metra, womb]

hematocolpos (he′ma-to-kol′pos, hem′a-)
An accumulation of menstrual blood in the vagina in consequence of imperforate hymen or other obstruction. SYN: retained menstruation. [hemato- + G. kolpos, vagina]

hematocrit (Hct) (he′ma-to-krit, hem′a-)
1. Percentage of the volume of a blood sample occupied by cells. Cf.:plasmacrit. 2. Obsolete term for a centrifuge or device for separating the cells and other particulate elements of the blood from the plasma. [hemato- + G. krino, to separate]

hematocryal (he-ma-tok′re-al, hem-a-)
SYN: poikilothermic. [hemato- + G. kryos, cold]

hematocyst (he′ma-to-sist, hem′a-)
SYN: hemorrhagic cyst.

hematocystis (he′ma-to-sis′tis, hem′a-)
Presence of blood in the bladder. [hemato- + G. kystis, bladder]

hematocyte (he′ma-to-sit, hem′a-)
SYN: hemocyte.

hematocytoblast (he′ma-to-si′to-blast, hem′a-)
SYN: hemocytoblast.

hematocytolysis (he′ma-to-si-tol′e-sis, hem′a-)
SYN: hemocytolysis.

hematocytometer (he′ma-to-si-tom′e-ter, hem′a-)
SYN: hemocytometer.

hematocytozoon (he′ma-to-si′to-zo′on, hem′a-)
SYN: hemocytozoon.

hematodyscrasia (he′ma-to-dis-kra′ze-a, hem′a-)
SYN: hemodyscrasia.

hematodystrophy (he′ma-to-dis′tro-fe, hem′a-)
SYN: hemodystrophy.

hematogenesis (he′ma-to-jen′e-sis, hem′a-)
SYN: hemopoiesis. [hemato- + G. genesis, production]

hematogenic, hematogenous (he′ma-to-jen′ik, hem′a-; hem-a-toj′en-us)
1. SYN: hemopoietic. 2. Pertaining to anything produced from, derived from, or transported by the blood.

hematohistioblast (he′ma-to-his′te-o-blast, hem′a-)
SYN: hemohistioblast.

hematohiston (he′ma-to-his′ton, hem′a-)
SYN: globin.

hematoidin (he-ma-toy′din)
A pigment derived from hemoglobin that contains no iron but is closely related to or identical to bilirubin. H. is formed intracellularly, presumably within reticuloendothelial cells, but is often found extracellularly after 5–7 days in foci of previous hemorrhage. It occurs as refractile, yellow-brown and orange-red granules, but more characteristically as rhomboid plates arranged in a radial pattern, so-called h. burrs. SYN: blood crystals, h. crystals. [hemato- + G. eidos, resemblance, + -in]

hematologist (he-ma-tol′o-jist, hem-a-)
A physician trained and experienced in hematology, i.e., skilled in performing diagnostic examinations of blood and bone marrow, or in treatment of such diseases, or both.

hematology (he-ma-tol′o-je, hem-a-)
The medical specialty that pertains to the anatomy, physiology, pathology, symptomatology, and therapeutics related to the blood and blood-forming tissues. SYN: hemology. [hemato- + G. logos, study]

hematolymphangioma (he′ma-to-limf′an-je-o′-ma)
A congenital anomaly consisting of numerous, closely packed, variably sized lymphatic vessels and larger channels, in association with a moderate number of blood vessels of a similar type.

hematolysis (he-ma-tol′i-sis, hem-a-)
SYN: hemolysis.

hematolytic (he′ma-to-lit′ik, hem′a)
SYN: hemolytic.

hematoma (he-ma-to′ma, hem-a-)
A localized mass of extravasated blood that is relatively or completely confined within an organ or tissue, a space, or a potential space; the blood is usually clotted (or partly clotted), and, depending on how long it has been there, may manifest various degrees of organization and decolorization. [hemato- + G. -oma, tumor] communicating h. SYN: pseudoaneurysm. corpus luteum h. SYN: corpus hemorrhagicum. epidural h. SYN: extradural hemorrhage. intracranial h. intracranial hemorrhage. intramural h. a h. in the wall of a structure, such as the bowel or bladder, usually resulting from trauma or excessive anticoagulation. pulsatile h. SYN: pseudoaneurysm. subdural h. SYN: subdural hemorrhage.

hematometra (he′ma-to-me′tra, hem′a-)
A collection or retention of blood in the uterine cavity. SYN: hemometra. [hemato- + G. metra, uterus]

hematometry (he-ma-tom′e-tre, hem-a)
Examination of the blood in order to determine any or all of the following: 1) the total number, types, and relative proportions of various blood cells; 2) the number or proportion of other formed elements; 3) the percentage of hemoglobin. In some instances, h. is used to include a determination of blood pressure. SYN: hemometry. [hemato- + G. metron, measure]

hematomphalocele (he′mat-om-fal′o-sel, hem′at-)
Umbilical hernia into which an effusion of blood has taken place. [hemato- + G. omphalos, umbilicus, + kele, hernia]

hematomyelia (he′ma-to-me′e-le-a)
Hemorrhage into the substance of the spinal cord; it is usually a posttraumatic lesion but may also be encountered in instances of spinal cord capillary telangiectases. SYN: hematorrhachis interna, myelapoplexy, myelorrhagia. [hemato- + G. myelos, marrow]

hematomyelopore (he′ma-to-mi′e-lo-por)
Formation of porosities in the spinal cord as a result of hemorrhages. [hemato- + G. myelos, marrow, + poros, a pore]

hematonic (he-ma-ton′ik, hem-a-)
SYN: hematinic.

hematopathology (he′ma-to-path-ol′o-je, hem′a-)
The division of pathology concerned with diseases of the blood and of hemopoietic and lymphoid tissues. SYN: hemopathology. [hemato- + G. pathos, suffering, + logos, study]

hematopathy (he-ma-top′a-the, hem-a-)
SYN: hemopathy.

hematopenia (he′ma-to-pe′ne-a, hem′a-)
Deficiency of blood, including hypocytosis or cytopenia. [hemato- + G. penia, poverty]

hematophagia (he′ma-to-fa′je-a, hem′a-)
Living on the blood of another animal, as does the vampire bat or a leech. SYN: hemophagia. [hemato- + G. phago, to eat]

hematophagous (he′ma-tof′a-gus, hem′a-)
Subsisting on blood. [hemato- + G. phago, to eat]

hematophagus (he′ma-tof′a-gus, hem′a-)
A blood eater, especially bloodsucking insects. [hemato- + G. phago, to eat]

hematoplastic (he′ma-to-plas′tik, hem′a)
SYN: hemopoietic. [hemato- + G. plasso, to form]

hematopoiesis (he′ma-to-poy-e′sis, hem′a-)
SYN: hemopoiesis.

hematopoietic (he′ma-to-poy-et′ik)
SYN: hemopoietic.

hematopoietin (he′ma-to-poy′e-tin, hem′a-)
SYN: erythropoietin.

hematoporphyria (he′ma-to-por-fir′e-a, hem′a-)
Obsolete term for any disorder of porphyrin metabolism, regardless of the cause. [hemato- + G. porphyra, purple]

hematoporphyrin (he′ma-to-por′fi-rin, hem′a-)
A dark red, almost purple, porphyrin resulting from the decomposition of hemoglobin; chemical composition is that of heme with the iron removed and the two vinyl (–CH&dbond;CH2) groups hydrated to hydroxyethyl (–CH(OH)–CH3). SYN: hemoporphyrin.

hematoporphyrinemia (he′ma-to-por′fi-ri-ne′me-a, hem′a-)
Older term used to designate the occurrence of hematoporphyrin in the circulating blood.

hematoporphyrinuria (he′ma-to-por′fi-ri-noo′re-a, hem′a-)
Older term used to designate enhanced urinary excretion of porphyrins.

hematopsia (he-ma-top′se-a, hem-a-)
SYN: hemophthalmia. [hemato- + G. opsis, vision]

hematorrhachis (he-ma-tor′a-kis, hem-a-)
A spinal hemorrhage. [hemato- + G. rhachis, spine] h. externa hemorrhage into the spinal canal external to the cord, either within or outside the dura. SYN: extradural h., subdural h.. extradural h. SYN: h. externa. h. interna SYN: hematomyelia. subdural h. SYN: h. externa.

hematosalpinx (he′ma-to-sal′pinks, hem′a-)
Collection of blood in a tube, often associated with a tubal pregnancy. SYN: hemosalpinx. [hemato- + G. salpinx, a trumpet]

hematosepsis (he′ma-to-sep′sis, hem′a)
Obsolete term for septicemia.

hematosin (he-ma-to′sin, hem-a-)
SYN: hematin.

hematosis (he-ma-to′sis, hem-a-)
1. SYN: hemopoiesis. 2. Oxygenation of the venous blood in the lungs.

hematospectroscope (he′ma-to-spek′tro-skop, hem′a-)
A spectroscope especially adapted to examination of the blood.

hematospectroscopy (he′ma-to-spek-tros′ko-pe, hem′a-)
Examination of the blood by means of a spectroscope.

hematospermatocele (he′ma-to-sper′ma-to-sel, hem′a-)
A spermatocele that contains blood.

hematospermia (he′ma-to-sper′me-a, hem′a-)
SYN: hemospermia.

hematostatic (he′ma-to-stat′ik, hem′a-)
1. Variant of hemostatic. 2. Due to stagnation or arrest of blood in the vessels of the part.

hematostaxis (he′ma-to-stak′sis, hem′a-)
Spontaneous bleeding due to a disease of the blood. [hemato- + G. staxis, a dripping]

hematosteon (he-ma-tos′te-on, hem-a)
Bleeding in the medullary cavity of a bone. [hemato- + G. osteon, bone]

hematothermal (he′ma-to-ther′mal, hem′a-)
SYN: homeothermic.

hematotoxin (he′ma-to-toks′in, hem′a-)
SYN: hemotoxin.

hematotropic (he′ma-to-trop′ik, hem′a-)
SYN: hemotropic.

hematotympanum (he′ma-to-tim′pan-um, hem′a-)
SYN: hemotympanum.




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