Main Entry: tur·quoise

Variant(s): also tur·quois \ˈtər-ˌkȯiz, -ˌkwȯiz\

Function: noun

Etymology: Middle English turkeys, from Anglo-French turkeise, from feminine of turkeis Turkish, from Turc Turkish

Date: 14th century

1 : a mineral that is a blue, bluish-green, or greenish-gray hydrous basic phosphate of copper and aluminum, takes a high polish, and is valued as a gem when skyblue
2 : a light greenish blue