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Definition of platycoelous in English:

platycoelous

Pronunciation /ˌplatɪˈsiːləs/

adjective

Zoology

  • Designating or characterized by a vertebral centrum which is flat in front and hollow behind.

Origin

Late 19th century; earliest use found in The Century Dictionary. From platy- + ancient Greek κοῖλος hollow + -ous.