Definition of prefrontal in English:



  • 1Anatomy
    In or relating to the foremost part of the frontal lobe of the brain.

    ‘the prefrontal cortex’
    • ‘When people, especially children, experience fear from external sources, the prefrontal cortex (thinking brain) has to provide a sense of safety.’
    • ‘Based on infrared light, the device would target the prefrontal cortex of the brain - where decisions are made and most societal inhibitions reside - and measure differences in blood flow.’
    • ‘Six months later, the researchers found, the subjects who showed the most activity in the brain's right prefrontal cortex also had the lowest antibodies.’
    • ‘The scientists found that an area of the brain called the ventrolateral prefrontal cortex, located near our temples, processes spatial information - information related to movements that we are about to make.’
    • ‘The scans also showed decreased activation of the ventrolateral prefrontal cortex - the brain's ‘superego,’ which keeps people from acting impulsively.’
  • 2Zoology
    Relating to or denoting a bone in front of the eye socket in some lower vertebrates (equivalent to part of the human ethmoid bone).

    • ‘At least three pairs of horns are present on this animal, one on each premaxilla, prefrontal, and angular bones of the skull.’


  • A prefrontal bone.

    • ‘Viewed dorsally, this ridge is most of the prefrontals ' contribution to the skull roof.’
    • ‘This is also true for the prefrontal of Phosphatosaurus, based on the reconstruction published by Buffetaut.’