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

First Known Use of companion cell

1859, in the meaning defined above

Learn More About companion cell

Time Traveler for companion cell

Time Traveler

The first known use of companion cell was in 1859

See more words from the same year

Dictionary Entries Near companion cell

companionate marriage

companion cell

companion crop

See More Nearby Entries 

Statistics for companion cell

Cite this Entry

“Companion cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/companion%20cell. Accessed 27 Nov. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on companion cell

Britannica.com: Encyclopedia article about companion cell

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!