Dictionary.com
Thesaurus.com

cyaneous

American  
[sahy-an-ee-uhs] / saɪˈæn i əs /

adjective

  1. deep blue; cerulean.


Other Word Forms

  • subcyaneous adjective

Etymology

Origin of cyaneous

1680–90; < Latin cyaneus < Greek kyáneos. See cyan- 1, -eous