megaspore

noun

mega·​spore ˈme-gə-ˌspȯr How to pronounce megaspore (audio)
: a spore in heterosporous plants giving rise to female gametophytes and usually larger than a microspore
megasporic adjective

Example Sentences

Recent Examples on the Web Other fossilized finds include a pinecone-like structure with megaspores and some fossilized tree trunks used to estimate the height of the trees, Wang noted. Fox News, 9 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'megaspore.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

mega- + -spore

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of megaspore was in 1857

Dictionary Entries Near megaspore

Cite this Entry

“Megaspore.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megaspore. Accessed 30 Nov. 2022.

Kids Definition

megaspore

noun

mega·​spore ˈmeg-ə-ˌspō(ə)r How to pronounce megaspore (audio)
-ˌspȯ(ə)r
: a plant spore that produces a female gametophyte

Medical Definition

megaspore

noun

1
: a spore in heterosporous plants that gives rise to female gametophytes and is generally larger than a microspore
2
megasporic adjective

More from Merriam-Webster on megaspore

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ