plural noun

: an order of small freshwater crustaceans (subclass Branchiopoda) having a shield-shaped carapace, sessile paired eyes, vestigial antennae, and 40 to 63 pairs of trunk appendages see triops
adjective or noun

Word History


New Latin, from not- + -ostraca

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Dictionary Entries Near Notostraca

Cite this Entry

“Notostraca.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2023.

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