| 单词 | protophloem |
| 释义 | protophloem[ proh-tuh-floh-em ] / ˌproʊ təˈfloʊ ɛm / noun Botany.the part of the primary phloem that develops first, consisting of narrow, thin-walled cells. Origin of protophloemFirst recorded in 1880–85; proto- + phloem Words nearby protophloemproto-oncogene, protopathic, protopathic sensibility, protopectin, protophilic, protophloem, Protopic, protoplanet, protoplanetary disk, protoplasm, protoplasmic astrocyte Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for protophloemprotophloem [ prō′tə-flō′ĕm′ ] 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. |
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