- orchidA plant of the orchid family (Orchidaceae), bearing unusually-shaped flowers of beautiful colours.
- orchisAn orchid; now specifically, a plant of the genus Orchis.
- orchidectomySynonym of orchiectomy.
- cryptorchidA male animal with one or two undescended testicles.
- orchiopexyA procedure for fixation of a testis, often to move an undescended testicle into the scrotum and keep it there.