Definition of orchidean in English:

orchidean

Pronunciation /ɔːˈkɪdɪən/

adjective

(also orchidian)
  • Relating to or characteristic of orchids, orchidaceous; of or relating to the former family Orchideae.

Origin

Early 19th century; earliest use found in William Barton (1786–1856). From scientific Latin Orchideae + -an.