[ivo.ry] n, pl -ries [ME ivorie, fr. OF ivoire, fr. L eboreus of ivory, fr. ebor-, ebur ivory, fr. Egypt 'b, 'bw elephant, ivory] (13c) 1 a: the hard creamy-white modified dentine that composes the tusks of a tusked mammal (as an elephant, walrus, or narwhal) b: a tusk that yields ivory
2: a variable color averaging a pale yellow 3 slang: tooth
4: something (as a piano key) made of ivory or of a similar substance -- ivory adj