ag·​na·​than ˈag-nə-thən How to pronounce agnathan (audio)
plural agnathans
: jawless fish
Two jawless fishes (agnathans) are recognized in these fossils … based on differences in the shape and histology of their tubercles …Moya Meredith Smith, Science, 18 Jan. 1991

Word History


agnatha + -an entry 1

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of agnathan was in 1939

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Dictionary Entries Near agnathan

Cite this Entry

“Agnathan.” Dictionary, Merriam-Webster, Accessed 4 Mar. 2024.

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