- orchidA plant of the orchid family (Orchidaceae), bearing unusually-shaped flowers of beautiful colours.
- orchisAn orchid; now specifically, a plant of the genus Orchis.
- orchitisA painful inflammation of one or both testes.
- orchidectomySynonym of orchiectomy.
- anorchiaAn intersex condition of XY individuals where both testes are absent at birth.
- orchialgiaPain in the testes.
- orchotomyThe surgical removal of a testicle; castration.