Selachii

plural noun
Se·la·chii | \-kēˌī\

Definition of Selachii 

in some classifications

: a variously delimited group of elasmobranch fishes:

a : a primary division of Pisces that includes all the elasmobranchs and is equivalent to Chondrichthyes

b : a class or subclass that includes all the elasmobranchs except the chimaeras

c : a subclass or order that includes the existing sharks and rays as distinguished from the extinct Pleuropterygii and Ichthyotomi

d : a suborder that includes the existing sharks as distinguished from the rays and is equivalent to Pleurotremata

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History and Etymology for Selachii

New Latin, irregular from selachos cartilaginous fish; akin to Greek selas light, brightness

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Dictionary Entries near Selachii

sel

sela

selachian

Selachii

selachoid

Selachoidei

selacholeic acid

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