hematin
- n a complex red organic pigment containing iron and other atoms to which oxygen binds
hematinic
- n a medicine that increases the hemoglobin content of the blood; used to treat iron-deficiency anemia
hematite
- n the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form
hematocele
- n swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis)
hematochezia
- n passage of stools containing blood (as from diverticulosis or colon cancer or peptic ulcer)
hematocoele
- n swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis)
hematocolpos
- n accumulation of menstrual blood in the vagina (usually due to an imperforate hymen)
hematocrit
- n the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
- n a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
hematocytopenia
- n an abnormally low number of red blood cells in the blood