triploblastic

adjective

trip·​lo·​blas·​tic ˌtri-plō-ˈbla-stik How to pronounce triploblastic (audio)
: having three primary germ layers

Word History

Etymology

Latin triplus + English -o- + -blastic

First Known Use

circa 1888, in the meaning defined above

Time Traveler
The first known use of triploblastic was circa 1888

Rhymes for triploblastic

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Browse Nearby Words

triplo-
triploblastic
triploblastica
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Cite this Entry

“Triploblastic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/triploblastic. Accessed 8 Jul. 2026.

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Medical Definition

triploblastic

adjective
trip·​lo·​blas·​tic ˌtrip-lō-ˈblas-tik How to pronounce triploblastic (audio)
: having three primary germ layers
human beings are triploblastic organisms
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