- diamond
- diamond [dī′mənd, dī′ə mənd]n.[ME diamaunt < OFr diamant < ML diamas (gen. diamantis), for L adamas < Gr, ADAMANT, diamond]1. a usually colorless, crystalline mineral consisting of pure carbon, with nearly perfect cleavage and the greatest hardness of any substance: unflawed, transparent stones are cut into gems of great brilliance, and less perfect forms are used for cutting tools, abrasives, etc.2. a gem or other piece cut from this mineral3.a) a lozenge-shaped plane figure (♦)b) any of a suit of playing cards marked with such figures in redc) [pl., with sing. or pl. v.] this suit of cards☆ 4. Baseballa) the infieldb) the whole playing fieldadj.1. of, like, or set with a diamond or diamonds2. marking or celebrating the 60th, or sometimes 75th, year [a diamond jubilee]vt.to adorn with or as with diamonds——————diamond in the rough1. a diamond in its natural state2. a person or thing of fine quality but lacking polish
English World dictionary. V. Neufeldt. 2014.