Definition of Mysticeti in English:

Mysticeti

plural noun

Zoology
  • A division of the whales that comprises the baleen whales.

    • ‘Estimates for Tragulidae, Odontoceti, and Mysticeti are generally younger and close together in time, followed by a still more recent divergence of cervids, bovids, antilocaprids and giraffids.’
    • ‘In the Late Oligocene, a fundamental split occurred between the Odontoceti and the Mysticeti.’
    • ‘The extant sub-orders are the Mysticeti (baleen whales) and the Odontoceti (toothed whales).’
    • ‘Modern whales may be divided into two subgroups: the Odontoceti (toothed whales) and the Mysticeti (baleen whales).’

Origin

Modern Latin (plural), from Greek mustikētos representing (in old editions of Aristotle) the phrase ho mus to kētos the mouse, the whale so called.

Pronunciation:

Mysticeti

/ˌmɪstɪˈsiːti/