[am-fi-truh-puh s]

Origin of amphitropous

First recorded in 1835–45; amphi- + -tropous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for amphitropous

Historical Examples of amphitropous

  • 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


  1. (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