Placoidei
Placoides Pla*coi"des, n. pl. [NL.] (Zo["o]l.) A group of fishes including the sharks and rays; the Elasmobranchii; -- called also {Placoidei}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • placoidei — pla·coi·dei …   English syllables

  • placoidei — dēˌī noun plural Usage: capitalized Etymology: New Latin, from plac + oidei in former classifications : a group of fishes with placoid scales equivalent or nearly so to Chondrichthyes and sometimes including the cyclostomes …   Useful english dictionary

  • Placoides — Pla*coi des, n. pl. [NL.] (Zo[ o]l.) A group of fishes including the sharks and rays; the Elasmobranchii; called also {Placoidei}. [1913 Webster] …   The Collaborative International Dictionary of English

  • plac|oid — «PLAK oyd», adjective, noun. –adj. 1. platelike, as the hard, spiny scales of a shark. 2. having platelike scales. –n. any fish having placoid scales. ╂[< New Latin Placoidei the group name < Greek pláx, plakós flat surface + eîdos form] …   Useful english dictionary

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