Full Definition of FACET. 1. : a small plane surface (as on a cut gem) â see brilliant illustration. 2. : any of the definable aspects that make up a subject (as of contemplation) or an object (as of consideration). 3. : the external corneal surface of an ommatidium.
Definition of cyanide. 1  1 : a compound of cyanogen with a more electropositive element or group: such asa : potassium cyanideb : sodium cyanide. 2  2 : cyanogen 1.
Cyan (/ËsaÉª.Én/ or /ËsaÉª.Ã¦n/) is a greenish-blue color. It is evoked by light with a predominant wavelength of between 490â520 nm, between the wavelengths of blue and green.