noun.
In anatomy, that part of the arm which is between the elbow-joint and the wrist; the antebrachium, represented by the length of the radius and ulna, or the radius alone.
To arm or prepare beforehand for attack or resistance.
the GNU version of the Collaborative International Dictionary of English
transitive verb.
To arm or prepare for attack or resistance before the time of need.
noun.
That part of the arm or fore limb between the elbow and wrist; the antibrachium.