n.
Variant: also tur · quois
Pronunciation: ' t ə r- ˌ ko ̇ iz, - ˌ kwo ̇ iz
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