Also found in: Medical.
Related to orchidaceous: cynosure, precipitously


1. Of, relating to, or characteristic of the orchid family.
2. Suggesting an orchid flower in extravagance, exoticism, or luxuriant beauty: "one of those brilliant orchidaceous days on the North Shore of Oahu" (Paul Theroux).

[From New Latin Orchidāceae, family name, from Latin orchis, orchid; see orchid.]


(ˌɔːkɪˈdeɪʃəs) or


(Botany) of, relating to, or belonging to the Orchidaceae, a family of flowering plants including the orchids


(ˌɔr kɪˈdeɪ ʃəs)

belonging to the orchid family.
[1830–40; < New Latin Orchidace(ae) (see orchid, -aceae) + -ous]
References in classic literature ?
Many of our orchidaceous plants absolutely require the visits of moths to remove their pollen-masses and thus to fertilise them.
The botanical wreath is from Sertum orchidaceum: a wreath of the most beautiful orchidaceous flowers by John Lindsey (published in 1838) from Selby Garden's own library.
Orchidaceous is the most abundant and has been considered as second biggest group of flowering plants in the plant kingdom.
Effects of Orchidaceous rhizoctonias on the Growth of Dendrobium candidum.
Rather, much like the orchidaceous settings and frivolously erotic subjects of Rococo art that revealed nothing of the festering contempt and eventual revolt of the masses in late-eighteenth century Paris, Love Hotel exudes nothing of Tokyo's economic wound hiding below its decadent cultural surface.