[ het-uh-ros-puh-ruh s, het-er-uh-spawr-uh s, -spohr- ]
/ ˌhɛt əˈrɒs pə rəs, ˌhɛt ər əˈspɔr əs, -ˈspoʊr- /
having more than one kind of spore.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for heterosporous
Salvinia, sal-vin′i-a, n. a genus of heterosporous ferns—formerly called Rhizocarpe or Pepperworts.
British Dictionary definitions for heterosporous
/ (ˌhɛtəˈrɒspərəs) /
(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-spôr′əs, hĕt′ə-rŏs′pər-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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.