I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ adjective
Etymology: over (III) + arm, n.
: done with the arm raised above the shoulder
overarm pitching
overarm bowling
specifically : being a swimming stroke in which the arm is lifted out of the water and stretched forward over the shoulder to begin the stroke
II. noun
Etymology: over (III) + arm, n.
: a bar extending parallel to and above the arbor of a milling machine with attachments to provide support for the arbor