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"
a telecommunication system that transmits images of objects (stationary or moving) between distant points
broadcasting visual images of stationary or moving objects; "she is a star of screen and video"; "Television is a medium because it is neither rare nor well done" - Ernie Kovacs
any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
a playing card in the major suit that has one or more red hearts on it; "he led the queen of hearts"; "hearts were trumps"
an inclination or tendency of a certain kind; "he had a change of heart"
the courage to carry on; "he kept fighting on pure spunk"; "you haven't got the heart for baseball"
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; "he stood still, his heart thumping wildly"
the locus of feelings and intuitions; "in your heart you know it is true"; "her story would melt your bosom"
a firm rather dry variety meat (usually beef or veal); "a five-pound beef heart will serve six"
a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines; "he drew a heart and called it a valentine"
a sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste