[het-uh-ros-puh-ruh s, het-er-uh-spawr-uh s, -spohr-]

adjective Botany.

having more than one kind of spore.

Nearby words

  1. heterosexist,
  2. heterosexual,
  3. heterosexuality,
  4. heterosis,
  5. heterosocial,
  6. heterospory,
  7. heterostracan,
  8. heterostyled,
  9. heterostyly,
  10. heterosuggestion

Origin of heterosporous

First recorded in 1870–75; hetero- + -sporous

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

Examples from the Web for heterosporous

British Dictionary definitions for heterosporous



(of seed plants and some ferns and club mosses) producing megaspores and microsporesCompare homosporous
Derived Formsheterospory, noun

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 heterosporous


[hĕt′ər-ə-spôrəs, hĕt′ə-rŏspər-əs]

Producing two types of spores differing in size and sex, the male microspore and the female megaspore, which develop into separate male and female gametophytes. All seed-bearing plants, as well as some ferns and other seedless plants, are heterosporous. Compare homosporous.
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