THESAURUS
kidney
abatis, abdomen, animus, anus, appendix, aptitude, bent, bias, blind gut, blood, bowels, brain, brains, brand, breed, cast, cecum, character, chitterlings, clan, cockscomb, colon, color, constitution, denomination, description, designation, diathesis, disposition, duodenum, eccentricity, endocardium, entrails, feather, foregut, form, genre, genus, giblets, gizzard, glomerulonephritis, grain, guts, haslet, heart, hindgut, idiosyncrasy, ilk, inclination, individualism, innards, inner mechanism, insides, internals, intestine, inwards, jejunum,
kidney stone, kidneys, kin, kind, kishkes, label, large intestine, leaning, line, liver, liver and lights, lot, lung, make, makeup, manner, mark, marrow, mental set, mettle, midgut, mind, mind-set, mold, nature, nephritis, nephrolithosis, nephrosis, number, perineum, persuasion, phylum, predilection, predisposition, preference, proclivity, propensity, pump, pylorus, race, rectum, renal calculus, renal hematuria, set, shape, slant, small intestine, sort, species, spleen, stamp, stomach, strain, streak, stripe, style, sweetbread, temper, temperament, tendency, the like of, the likes of, ticker, tongue, tribe, tripe, tripes, turn, turn of mind, twist, type, uremia, variety, vermiform appendix, viscera, vitals, warp, works
ROGET THESAURUS
kidney
Class
N
class, division, category, categorema, head, order, section, department, subdepartment, province, domain, kind, sort, genus, species, variety, family, order, kingdom, race, tribe, caste, sept, clan, breed, type, subtype, kit, sect, set, subset, assortment, feather,
kidney, suit, range, gender, sex, kin, manner, description, denomination, designation, rubric, character, stamp predicament, indication, particularization, selection, specification, similarity.