Dictionary.com

protophloem

[ proh-tuh-floh-em ]
/ ˌproʊ təˈfloʊ ɛm /
Save This Word!

noun Botany.
the part of the primary phloem that develops first, consisting of narrow, thin-walled cells.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of protophloem

First recorded in 1880–85; proto- + phloem
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Scientific definitions for protophloem

protophloem
[ prō′tə-flōĕm′ ]

The first formed phloem that differentiates from the procambium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK