Main Entry: re·spire

Pronunciation: \ri-ˈspī(-ə)r\

Function: verb

Inflected Form(s): re·spired; re·spir·ing

Etymology: Middle English, from Latin respirare, from re- + spirare to blow, breathe

Date: 15th century

intransitive verb 1 : breathe; specifically : to inhale and exhale air successively
2 of a cell or tissue : to take up oxygen and produce carbon dioxide through oxidationtransitive verb : breathe