• synonyms


adjective Botany.
  1. turned or facing inward, as anthers that open toward the gynoecium.
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Origin of introrse

1835–45; < Latin introrsus, contraction of *intrōversus toward the inside. See intro-, versus
Related formsin·trorse·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for introrse

Historical Examples of introrse

  • Stamens 6, inserted at the base of the divisions; filaments slender, anthers short, introrse.

    The Manual of the Botany of the Northern United States

    Asa Gray

British Dictionary definitions for introrse


  1. botany turned inwards or towards the axis, as anthers that shed their pollen towards the centre of the flower
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Derived Formsintrorsely, adverb

Word Origin for introrse

C19: from Latin introrsus, contraction of intrōversus, from intro- + versus turned, from vertere to turn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

introrse in Science


  1. Facing inwards toward the axis around which a flower is arranged. Used of anthers and the direction in which they open to release pollen.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.