hemlock
- n poisonous drug derived from an Eurasian plant of the genus Conium
Socrates refused to flee and died by drinking hemlock - n large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous
- n soft coarse splintery wood of a hemlock tree especially the western hemlock
- n an evergreen tree
hemlock water dropwort
- n European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonous
hemminge
- n English actor who edited the first folio of Shakespeare's plays (1556-1630)
hemochromatosis
- n pathology in which iron accumulates in the tissues; characterized by bronzed skin and enlarged liver and diabetes mellitus and abnormalities of the pancreas and the joints
hemodialysis
- n dialysis of the blood to remove toxic substances or metabolic wastes from the bloodstream; used in the case of kidney failure
hemodialyzer
- n a machine that uses dialysis to remove impurities and waste products from the bloodstream before returning the blood to the patient's body
hemodynamics
- n the branch of physiology that studies the circulation of the blood and the forces involved
hemofil
- n a coagulation factor (trade name Hemofil) whose absence is associated with hemophilia A
hemogenesis
- n the formation of blood cells in the living body (especially in the bone marrow)
hemoglobin
- n a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
fish have simpler hemoglobin than mammals