Dictionary

companion cell

noun

Definition of COMPANION CELL

:  a living nucleated cell that is closely associated in origin, position, and probably function with a cell making up part of a sieve tube of a vascular plant
ADVERTISEMENT

First Known Use of COMPANION CELL

1887

Browse

Next Word in the Dictionary: companion cropPrevious Word in the Dictionary: companionate marriageAll Words Near: companion cell
July 29, 2015
indomitable Hear it
incapable of being subdued or conquered
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears