Vitals1. (n. pl.) Organs that are necessary for life; more especially, the heart, lungs, and brain.
2. (n. pl.) Fig.: The part essential to the life or health of anything; as, the vitals of a state.
Thesaurus Entries
abdomen, anus, appendix, blind gut, bosom, bowels, brain, breast, cecum, center, center of life, colon, core, deepest recesses, duodenum, endocardium, entrails, esoteric reality, foregut, giblets, gizzard, guts, heart, heart of hearts, hindgut, inmost heart, inmost soul, innards, inner, inner landscape, inner life, inner man, inner mechanism, inner nature, inner recess, inner self, inside, insides, interior, interior man, intern, internal, internals, intestine, intrados, inward, inwards, jejunum, kidney, kishkes, large intestine, liver, liver and lights, lung, midgut, nerve center, penetralia, perineum, pump, pylorus, quick, recesses, rectum, secret heart, secret place, secret places, small intestine, soul, spirit, spleen, stomach, ticker, tripes, true being, true inwardness, vermiform appendix, viscera, vital center, vital principle, works