Heterostraci

plural noun

Het·​er·​os·​tra·​ci
: a class or other division of ostracoderms with widely separated nares and eyes and with an exoskeleton which may consist of a few large plates or numerous placoid scales

Word History

Etymology

New Latin, from heter- + Greek ostrakon shell, potsherd

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Dictionary Entries Near Heterostraci

Cite this Entry

“Heterostraci.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Heterostraci. Accessed 21 Jul. 2024.

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