Orchidales

from The Century Dictionary.

• noun An order of monocotyledonous plants including the families Burmanniaceæ and Orchidaceæ, which agree in their mostly complete 3–6-merous flowers, inferior compound ovary, and very numerous minute seeds (whence called also Microspermæ).

from the GNU version of the Collaborative International Dictionary of English.

• proper noun An order of plants with irregular flowers having minute seeds, and including the families Orchidaceae and Burmanniaceae.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun order of plants with irregular flowers having minute seeds: Orchidaceae; Burmanniaceae