- indicating a cavity within a body or a hollow organ or part: coelacanth, coelenterate, coelenteron
WordReference Random House Unabridged Dictionary of American English © 2026
coel-,
- a combining form meaning "cavity,'' used in the formation of compound words:coelenteron.
- akin to cave combining form representing Greek koîlos hollow
Collins Concise English Dictionary © HarperCollins Publishers::
coel- prefix
'coel-' also found in these entries (note: many are not synonyms or translations):
coelacanth
- coelenterate
- coelom
- acoelous
- blastocoel
- celiac
- coelanaglyphic
- -coele
- coelenteron
- coeloscope
- gastrocoel
- hemocoel
- pseudocoel
- spongocoel