craniotomy

n. the surgical opening of the skull, a procedure that may be performed, for example, to administer surgical treatment or to release pressure when the brain is expanding due to hydrocephalus or cerebral edema. Craniotomy is one of the oldest types of surgery: Evidence of it has been found in prehistoric skulls in nearly every part of the world. See also trephination.

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Psychology term of the day

May 9th 2024

on-center ganglion cell

a retinal ganglion cell that is excited by light in the center of its receptive field but is inhibited by light in the surround. See also on response. Compare off-center ganglion cell.