diamond

[dahy-muh nd, dahy-uh-]

noun

adjective

verb (used with object)

to adorn with or as if with diamonds.

Nearby words

  1. diametrical,
  2. diametrically,
  3. diamide,
  4. diamine,
  5. diammonium phosphate,
  6. diamond anniversary,
  7. diamond bar,
  8. diamond bird,
  9. diamond drill,
  10. diamond dust

Idioms

    diamond in the rough, a person of fine character but lacking refined manners or graces.

Origin of diamond

1275–1325; Middle English diamant < Old French < Vulgar Latin *diamant-, stem of *diamas, perhaps alteration of *adimas (> French aimant magnet, Old Provençal aziman diamond, magnet), for Latin adamas adamant, diamond

Related formsdia·mond·like, adjective

Diamond

[dahy-muh nd, dahy-uh-]

noun

Neil,born 1941, U.S. singer and songwriter.
Cape, a hill in Canada, in S Quebec, on the St. Lawrence River.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for diamonds


British Dictionary definitions for diamonds

diamond

noun

  1. a colourless exceptionally hard mineral (but often tinted yellow, orange, blue, brown, or black by impurities), found in certain igneous rocks (esp the kimberlites of South Africa). It is used as a gemstone, as an abrasive, and on the working edges of cutting tools. Composition: carbon. Formula: C. Crystal structure: cubic
  2. (as modifier)a diamond ring Related adjective: diamantine
geometry
  1. a figure having four sides of equal length forming two acute angles and two obtuse angles; rhombus
  2. (modifier)rhombic
  1. a red lozenge-shaped symbol on a playing card
  2. a card with one or more of these symbols or (when plural) the suit of cards so marked
baseball
  1. the whole playing field
  2. the square formed by the four bases
(formerly) a size of printer's type approximately equal to 4 1/2 point
black diamond a figurative name for coal
rough diamond
  1. an unpolished diamond
  2. a person of fine character who lacks refinement and polish

verb

(tr) to decorate with or as with diamonds
Derived Formsdiamond-like, adjective

Word Origin for diamond

C13: from Old French diamant, from Medieval Latin diamas, modification of Latin adamas the hardest iron or steel, diamond; see adamant

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for diamonds

diamond

n.

early 14c., from Old French diamant, from Medieval Latin diamantem (nominative diamas), from Vulgar Latin *adiamantem (altered by influence of the many Greek words in dia-), from Latin adamantem (nominative adamans) "the hardest metal," later, "diamond" (see adamant). Playing card suit is from 1590s; Sense in baseball is American English, 1875.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for diamonds

diamond

[dīə-mənd]

A form of pure carbon that occurs naturally as a clear, cubic crystal and is the hardest of all known minerals. It often occurs as octahedrons with rounded edges and curved surfaces. Diamond forms under conditions of extreme temperature and pressure and is most commonly found in volcanic breccias and in alluvial deposits. Poorly formed diamonds are used in abrasives and in industrial cutting tools.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.