diamonded

di·a·mond

 (dī′ə-mənd, dī′mənd)

n.

1. An extremely hard, highly refractive crystalline form of carbon that is usually colorless and is used as a gemstone and in abrasives, cutting tools, and other applications.

2. A piece of jewelry containing such a gemstone.

3. A rhombus, particularly when oriented so that one diagonal extends from left to right and the other diagonal extends from top to bottom.

4. Games

a. A red, lozenge-shaped figure on certain playing cards.

b. A playing card with this figure.

c. diamonds(used with a sing. or pl. verb) The suit of cards represented by this figure.

5. Baseball

a. The infield.

b. The whole playing field.

adj.

Of or relating to a 60th or 75th anniversary.

tr.v. di·a·mond·ed, di·a·mond·ing, di·a·monds

To adorn with diamonds.

Idiom:

diamond in the rough

One having exceptionally good qualities or the potential for greatness but lacking polish and refinement.

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[Middle English diamaunt, from Old French diamant, from Medieval Latin diamās, diamant-, alteration of Latin adamās; see adamant.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.