Definition of basilosaurus in English:

basilosaurus

noun

  • A large marine cetacean of the Eocene epoch, having a long, slender body and vestigial fore and hind limbs. Fossils were discovered in the early 1990s.

    • ‘Although Basilosaurus possessed a fluke and peduncle, Buchholtz dismisses these features because they are too short relative to body length.’
    • ‘In Basilosaurus, nearly all of these structures lay within the body wall, and most parts were immobile.’
    • ‘One of these was pictured in the exhibition - the Basilosaurus.’
    • ‘The first of the truly gigantic whales, Basilosaurus had the serpentine shape of a sea monster and short, sharp teeth for hunting sharks and other prey.’
    • ‘Then they found tiny legs on a 50-foot long, 40-million year old whale named Basilosaurus.’

Origin

Modern Latin, from Greek basileus king + sauros lizard.

Pronunciation:

basilosaurus

/ˌbasələˈsôrəs/