a combining form meaning “cavity,” used in the formation of compound words: coelenteron.
Also cele-, coele-.

Origin of coel-

combining form representing Greek koîlos hollow; akin to cave Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for coel-



indicating a cavity within a body or a hollow organ or partcoelacanth; coelenterate; coelenteron

Word Origin for coel-

New Latin, from Greek koilos hollow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012