Os1. (n.) A bone.
2. (n.) A mouth; an opening; an entrance.
3. (n.) One of the ridges of sand or gravel found in Sweden, etc., supposed by some to be of marine origin, but probably formed by subglacial waters. The osar are similar to the kames of Scotland and the eschars of Ireland. See Eschar.
Thesaurus Entries
A, Ag, Al, Am, Ar, As, At, Au, B, Be, Bi, C, Ca, Cb, Cd, Ce, Ciceronian, Cl, Cm, Co, Cr, Cs, Cu, Demosthenian, Demosthenic, Dy, E, Er, Es, Eu, F, Fe, Fm, Fr, Ga, Gd, Ge, H, Ha, He, Hf, Hg, Ho, I, In, Ir, K, Kr, La, Li, Lu, Lw, Md, Mg, Mn, Mo, Mv, N, Na, Nb, Nd, Ne, Ni, No, O, Os, P, Pa, Pb, Pd, Pm, Po, Pr, Pt, Pu, Quaker-colored, Ra, Rb, Re, Rf, Rh, Rn, Ru, S, Sb, Sc, Se, Si, Sm, Sn, Sr, Ta, Tb, Tc, Te, Ti, Tl, Tm, Tullian, U, V, W, Yb, Zn, Zr, achroma, achromasia, achromatosis, acier, alabaster, albescence, albinism, albino, albinoism, aluminum, americium, and pence, antimony, argent, argentine, argon, arsenic, articulate, ashen, ashy, astatine, aureate, bar, barium, berkelium, beryllium, besnow, bismuth, blanch, bleach, blondness, boron, brass, brassy, brazen, bright, bromine, bronze, bronzy, bullion, burnished, cadmium, calcium, canescence, canescent, carbon, cash, cerium, cesium, chalk, chalkiness, chalky, chlorine, chromium, cinereous, cinerous, circulating medium, cobalt, coin gold, coin silver, coinage, coined liberty, cold cash, columbium, copper, coppery, creaminess, cretaceous, cupreous, cuprous, curium, currency, cutlery, dapple, dapple-gray, dappled, dappled-gray, dingy, dining utensils, dismal, dollars, dove-colored, dove-gray, dreary, driven snow, dulcet, dull, dusty, dysprosium, einsteinium, eloquent, emergency money, erbium, etiolate, euphonious, europium, facund, fairness, felicitous, fermium, ferrous, ferruginous, filthy lucre, flat silver, flatware, fleece, fleecy-white, flour, fluorine, foam, forks, fractional currency, francium, frost, frosted, frostiness, frosty, gadolinium, gallium, germanium, gilt, glaucescence, glaucescent, glaucous, glaucousness, gleaming, glib, gold, gold nugget, gold-filled, gold-plated, golden, gray, gray-black, gray-brown, gray-colored, gray-drab, gray-green, gray-spotted, gray-toned, gray-white, grayed, grayish, grey, griseous, grizzle, grizzled, grizzliness, grizzly