1. (n.) A variety of quartz, of a color between grass green and leek green, which is found associated with common chalcedony. It was much esteemed by the ancients for making engraved ornaments.

2. (n.) The viscous material of an animal or vegetable cell, out of which the various tissues are formed by a process of differentiation; protoplasm.

3. (n.) Unorganized material; elementary matter.

4. (n.) A mixture of starch and glycerin, used as a substitute for ointments.

Rh factor Rh-negative Rh-positive Rh-type Rhesus factor antibody antigen arterial blood blood blood bank blood cell blood count blood donor blood donor center blood group blood grouping blood picture blood platelet blood pressure blood serum blood substitute bloodmobile bloodstream circulation clinical dextran dextran erythrocyte globulin gore grume hematics hematologist hematology hematoscope hematoscopy hemocyte hemoglobin hemometer humor ichor isoantibody leukocyte lifeblood neutrophil opsonin phagocyte plasma substitute red corpuscle serum type O venous blood white corpuscle