diamond
1. di.a.mond \'di--(*-)m*nd\ n [ME diamaunde, fr. MF diamant, fr. LL
diamant-, diamas,] often attrib alter. of L adamant-, adamas, hardest
metal, diamond, fr. Gk 1a: native crystalline carbon that is usu. nearly
colorless, that when tran sparent and free from flaws is highly valued as a
precious stone, and that is used industrially as an abrasive powder and in
rock drills because it is the hardest substance known; also : a piece of
this substance 1b: crystallized carbon produced artificially 2: something
that resembles a diamond 3: a square or rhombus-shaped configuration usu.
having a distinctive orien tation 4a: a red lozenge impressed on a playing
card; also : a card marked with such lozenges pl but sing or pl in constr
4b: the suit comprising cards so marked 5a: INFIELD 5b: the entire
playing field in baseball or softball
2. diamond vt : to adorn with or as if with diamonds