• (a.) Of or pertaining to the muscles, and taking a spiral course; -- applied esp. to a large nerve of the arm.
Mus`cu·lo·spi'ral adjective [ Latin musculus muscle + English spiral .] (Anat.) Of or pertaining to the muscles, and taking a spiral course; -- applied esp. to a large nerve of the arm. 
Type: Term Pronunciation: mŭs′kū-lō-spī′răl Definitions: 1. Denoting the musculospiral nerve. See: radial nerve