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[am-fi-truh-puh s] /æmˈfɪ trə pəs/
adjective, Botany.
(of an ovule) inverted so that the funicle is in the middle of one side.
Origin of amphitropous
First recorded in 1835-45; amphi- + -tropous Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for amphitropous
Historical Examples
  • The amphitropous ovule (Fig. 346) has a short or incomplete rhaphe.

  • Removed extra comma after "amphitropous" in its index entry.

  • Hemitropous (ovule or seed), nearly same as amphitropous, 123.

  • Rhaphe, the line or ridge which runs from the hilum to the chalaza in anatropous and amphitropous seeds.

  • Raphe, the adherent funiculus connecting the hilum and chalaza in anatropous or amphitropous ovules or seeds.

    Seeds of Michigan Weeds W. J. (William James) Beal
British Dictionary definitions for amphitropous


(of a plant ovule) partially inverted so that the base and the micropyle at the apex are the same distance from the funicle
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
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