Definition of citreous in English:

citreous

adjective

  • Citron- or lemon-coloured; (more loosely) yellow or yellowish.

Origin

Mid 17th century; earliest use found in Richard Tomlinson (fl. 1657). From classical Latin citreus belonging to, or growing on the citron tree, made of the wood of the (African) citron tree (from citrus + -eus: see -eous) + -ous.

Pronunciation

citreous

/ˈsɪtrɪəs/