angiospermous

adjective

an·​gio·​sper·​mous ¦an-jē-ə-¦spər-məs How to pronounce angiospermous (audio)
variants or angiospermal
¦an-jē-ə-¦spər-məl
or less commonly angiospermatous
¦an-jē-ə-¦spər-mə-təs
or angiospermic
¦an-jē-ə-¦spər-mik
: of, relating to, or characteristic of the class Angiospermae
often : having ovules and seeds enclosed in an ovary
contrasted with gymnospermous
angiospermy
ˈan-jē-ə-ˌspər-mē
noun
plural -es

Word History

Etymology

angi- + -spermous, -spermal, -spermatous, -spermic

First Known Use

circa 1731, in the meaning defined above

Time Traveler
The first known use of angiospermous was circa 1731

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Cite this Entry

“Angiospermous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/angiospermous. Accessed 15 Dec. 2025.

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