the angle formed by the sylvian line and a line perpendicular to the horizontal plane tangential to the highest point of the hemisphere.
Sylvius,Franciscus, Dutch physician, 1614-1672.
aqueduct of Sylvius
fossa of Sylvius
sylvian fissure - Synonym(s): lateral cerebral sulcus
sylvian valve - Synonym(s): valve of inferior vena cava
sylvian ventricle - Synonym(s): cavity of septum pellucidum