[ˈspɛkjʊləm], (Noun)

Definitions:
- a metal instrument that is used to dilate an orifice or canal in the body to allow inspection

- a bright patch of plumage on the wings of certain birds, especially a strip of metallic sheen on the secondary flight feathers of many ducks

- a mirror or reflector of glass or metal, especially (formerly) a metallic mirror in a reflecting telescope


Phrases:

Origin:
late Middle English: from Latin, literally ‘mirror’, from specere ‘to look’