Entry 2 senses · 2 variants Webster, 1913 Forearm /fôr-ärm'/ · Fore·arm · IPA /ˈfɔːˌɹɑːm/ v. t. n. 01 v. t. To arm or prepare for attack or resistance before the time of need. 1. To arm or prepare for attack or resistance before the time of need. 02 n. That part of the arm or fore limb between the elbow and wrist; the antibrachium. 1. That part of the arm or fore limb between the elbow and wrist; the antibrachium.(Anat.)