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1. Botany A minute opening in the ovule of a seed plant through which the pollen tube usually enters.
2. Zoology A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.
[micro- + Greek pulē, gate.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Adj.||1.||micropylar - of or relating to a micropyle|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.