pro·​to·​phlo·​em ˌprō-tə-ˈflō-ˌem How to pronounce protophloem (audio)
: the first-formed phloem that develops from procambium, consists of narrow thin-walled cells, and is usually associated with a region of rapid growth

Word History

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of protophloem was in 1884

Dictionary Entries Near protophloem

Cite this Entry

“Protophloem.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2023.

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