D defs.my
Entry 1 sense Webster, 1913

Ceylanite

· Cey·lan·ite · IPA
01 n. A dingy blue, or grayish black, variety of spinel. It is also called pleonaste.
  1. 1.
    A dingy blue, or grayish black, variety of spinel. It is also called pleonaste.(Min.) Also: pleonaste