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Etymology edit

sub- +‎ galeal

Adjective edit

subgaleal (not comparable)

  1. (anatomy) Beneath the galea aponeurosis.
    • 2012, The Orbit, An Issue of Oral and Maxillofacial Surgery, page 582:
      Proceeding anteriorly, the temporalis muscles are left intact; however, a subgaleal approach may be taken in a plane that is readily separable.