英语词汇“sporopollenin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sporopollenin
释义	sporopollenin [ spawr-uh-pol-uh-nin ] / ˌspɔr əˈpɒl ə nɪn / noun an inert, tough polymer forming the resistant outer coat of a pollen grain or spore. Origin of sporopollenin First recorded in 1930–35; sporo- + pollen + -in² Words nearby sporopollenin sporont, sporophore, sporophyll, sporophyte, sporoplasm, sporopollenin, Sporothrix, sporotrichosis, -sporous, Sporozoa, sporozoan Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for sporopollenin sporopollenin [ spôr′ə-pŏl′ə-nĭn ] An organic polymer that is extremely resistant to degradation. Pollen grains and many kinds of spores have a protective outer coating of sporopollenin, which is so durable that microfossils of sporopollenin are found in rocks over 500 million years old. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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sporopollenin