actinostome

noun

ac·​tin·​o·​stome
ak-ˈti-nə-ˌstōm
plural -s
1
: the mouth of a radially symmetrical animal
2
: the peristome of an echinoderm

Word History

Etymology

actin- + -stome

First Known Use

1860, in the meaning defined at sense 1

Time Traveler
The first known use of actinostome was in 1860

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Dictionary Entries Near actinostome

actinostomal

actinostome

actinotrichium

See More Nearby Entries 

Cite this Entry

“Actinostome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actinostome. Accessed 30 Nov. 2024.

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