Of, relating to, or designating the convolution of the frontal lobe of the brain immediately in front of the central sulcus (including the primary motor area).
Origin
Late 19th century; earliest use found in Science.
Definition of precentral in US English:
precentral
adjective
Anatomy
Of, relating to, or designating the convolution of the frontal lobe of the brain immediately in front of the central sulcus (including the primary motor area).