Definition of "quadratojugal" []

• Of or pertaining to the quadrate and jugal bones. (adjective)
• Of or pertaining to the quadratojugal bone. (adjective)
• A small jaw bone found in the skull of most reptiles, amphibians and birds. (noun)

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• "Co-ossification of the epinasal, rostral, and epijugals unites several of the anterior (rostral-nasal-premaxillae) and lateral (jugal-quadratojugal) skull elements."
• "The monitor lizards share a number of distinct features in the structure of their skulls with the modern snakes; both, for instance, possess a moveable quadrate bone at the back of the jaw, and both are missing the quadratojugal bone at the rear of the skull."
• "Three arches were considered, which were named, commencing with the inferior in position: the quadratojugal, the zygomatic and the parietoquadrate."