| HEM | accumulation of blood in the vagina and uterus |
|---|---|
| HEM | accumulation of menstrual blood in the vagina (usually due to an imperforate hymen) |
| HEM | a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood |
| HEM | the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit |
| HEM | a cyst containing blood |
| HEM | an abnormally low number of red blood cells in the blood |
| HEM | the presence of red blood cells in the urine |
| HEM | the formation of blood cells in the living body (especially in the bone marrow) |
| HEM | pertaining to the formation of blood or blood cells |
| HEM | a colorless protein obtained by removing heme from hemoglobin |
| HEM | an orange-yellow pigment in the bile that forms as a product of hemoglobin |
| HEM | of or relating to or involved in hematology |