Third-person singular simple present indicative form of pin cushion

(mathematics) To interconnect two sets. / (transitive, intransitive) To join mutually; to unite. / To say by way of interruption, to interject.

Shaped like a rod; long and cylindrical. / (biology) Specifically, describing a form of bacterium.

A migratory bird that travels between the Arctic and Antarctic, Sterna paradisaea.