Definition of frons in US English:



  • The forehead or equivalent part of an animal, especially the middle part of an insect's face between the eyes and above the clypeus.

    • ‘Body size was assessed using two measures: body length from the frons to the end of the abdomen (in millimeters), and the combined lengths of the hind tibia and tarsus leg segments (in millimeters).’
    • ‘There remain the frons the post-ocular patch, the pronotum, the hind femora and the abdominal tergites.’
    • ‘In P, another clone has been magnified, showing ectopic ocelli and bristles in the frons.’
    • ‘Saccà recognized three forms - calleva, vicina, and nebulo - as constituents of a geographic cline of M. d. sensu stricto, based on the ratio of frons to head width of males and on abdominal coloration.’
    brow, temple
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Mid 19th century: from Latin, ‘front, forehead’.