A mechanoreceptive sense organ in the middle ear of birds

Ophrys, a European genus of terrestrial orchids, especially Ophrys apifera / Cottonia peduncularis, a species of orchid from India and Sri Lanka

Abbreviation of professor ordinarius.

(pathology) infection on the mucous membranes of the mouth due to yeast of the genus Candida

The person who is in charge, rather than a lackey or representative.

A European orchid with small brownish flowers that look like insects, Ophrys insectifera.

plural of pecking order

(archaic) Of any social standing.

(archaic) All people, of any social standing.

Alternative form of common-or-garden