Definition of selachian in English:


Line breaks: se¦lach|ian
Pronunciation: /sɪˈleɪkɪən


  • An elasmobranch fish of a group that comprises the sharks and dogfishes.
    • The former group Selachii, subclass Elasmobranchii: now treated as one, two, or three superorders
    More example sentences
    • Those produced by the hypochordal lobe of the caudal fin of selachians and early bony fishes have been studied in detail.
    • Fish included many elasmobranchs as well as osteichthyes such as palaeoniscoids, dipnoi, selachians, and crossopterygians, together with the ancient acanthodians.
    • Lack of neural spine is consistent with selachians (a group of vertebrates which includes sharks and rays).


Back to top  
  • Relating to the selachians.
    More example sentences
    • The A. alatus specimens were collected from tuffaceous fine-grained sandstones that overlay the very fossiliferous yellowish tuffs containing abundant remains of bivalves, echinoids, whale vertebrae, and selachian teeth.


mid 19th century: from modern Latin Selachii (from Greek selakhos 'shark') + -an.

More definitions of selachian

Definition of selachian in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
a small amount; a little