Placoidei

plural noun
Pla·​coi·​dei | \ -dēˌī \

Definition of Placoidei

in former classifications
: a group of fishes with placoid scales equivalent or nearly so to Chondrichthyes and sometimes including the cyclostomes

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History and Etymology for Placoidei

New Latin, from plac- + -oidei

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Cite this Entry

“Placoidei.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Placoidei. Accessed 27 Jan. 2021.

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