postural syncope

n.

A syncope that occurs upon assuming an upright position and is caused by inadequate blood flow to the brain resulting from failure of normal vasoconstrictive mechanisms.

Words nearby postural syncope

postural, postural contraction, postural drainage, postural position, postural proteinuria, postural syncope, postural vertigo, posture, posture sense, posturize, postvaccinal encephalitis