Dictionary.com
definitions
  • synonyms

turquoise

[tur-koiz, -kwoiz]
See more synonyms for turquoise on Thesaurus.com
noun
  1. Also tur·quois. an opaque mineral, a basic hydrous copper aluminum phosphate often containing a small amount of iron, sky-blue or greenish-blue in color, cut cabochon as a gem.Compare bone turquoise.
  2. Also called turquoise blue. a greenish blue or bluish green.
Show More

Origin of turquoise

1350–1400; < French: Turkish (stone), equivalent to Turc Turk + -oise, feminine of -ois -ese; replacing Middle English turkeis < Middle French
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for turquoise

Contemporary Examples

Historical Examples


British Dictionary definitions for turquoise

turquoise

noun
  1. a greenish-blue fine-grained secondary mineral consisting of hydrated copper aluminium phosphate. It occurs in igneous rocks rich in aluminium and is used as a gemstone. Formula: CuAl 6 (PO 4) 4 (OH) 8 .4H 2 O
    1. the colour of turquoise
    2. (as adjective)a turquoise dress
Show More

Word Origin

C14: from Old French turqueise Turkish (stone)
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 turquoise

n.

precious stone, 1560s, replacement from Middle French of Middle English turkeis, turtogis (late 14c.), from Old French fem. adjective turqueise "Turkish," in pierre turqueise "Turkish stone," so called because it was first brought to Europe from Turkestan or some other Turkish dominion (Sinai peninsula, according to one theory). Cognate with Spanish turquesa, Medieval Latin (lapis) turchesius, Middle Dutch turcoys, German türkis, Swedish turkos. As a color name, attested from 1853.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

turquoise in Science

turquoise

[tûrkwoiz′, -koiz′]
  1. A blue to bluish-green or yellowish-green triclinic mineral that occurs in reniform (kidney-shaped) masses with surfaces shaped like a bunch of grapes, especially in aluminum-rich igneous rocks such as trachyte. In its polished blue form it is prized as a gem. Chemical formula: CuAl6(PO4)4(OH)8·5H2O
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.