Definition of mytilacean in English:

mytilacean

noun

Zoology
  • A bivalve of the group Mytilacea (now a superfamily), which comprises marine mussels.

adjective

Zoology
  • Of, belonging to, or characteristic of the group Mytilacea of marine mussels.

Origin

Mid 19th century; earliest use found in The Penny Cyclopaedia. From scientific Latin Mytilacea (H. M. D. de Blainville Man. de Malacologie et Conchyliologie 531; from Mytilus + -acea, after French Mytilacés (Cuvier, 1817), Mytilacées (Lamarck, 1819)) + -an.

Pronunciation

mytilacean

/mɪtɪˈleɪʃn/