[ ek-strawrs, ek-strawrs ]
/ ɛkˈstrɔrs, ˈɛk strɔrs /

adjective Botany.

turned or facing outward, as anthers that open toward the perianth.

Nearby words

  1. extrinsic eye muscle,
  2. extrinsic factor,
  3. extrinsic incubation period,
  4. extrinsic sphincter,
  5. extro-,
  6. extrorsely,
  7. extrospection,
  8. extroversion,
  9. extrovert,
  10. extroverted

Origin of extrorse

1855–60; < Late Latin extrorsus in outward direction, equivalent to extr(a)- extra- + (v)orsus (adv.) turned

Related formsex·trorse·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for extrorse

British Dictionary definitions for extrorse



/ (ɛkˈstrɔːs) /


botany turned or opening outwards or away from the axisextrorse anthers

Word Origin for extrorse

C19: from Late Latin extrorsus in an outward direction, from Latin extra- + versus turned towards

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

Science definitions for extrorse


[ ĕkstrôrs′ ]

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