lumbrical

[ luhm-bri-kuhl ]

noun

, Anatomy.

1. any of four wormlike muscles in the palm of the hand and in the sole of the foot.

Word History and Origins

Origin of lumbrical¹

1685–95; < New Latin lumbrīcālis, literally, pertaining to a worm, equivalent to Latin lumbrīc ( us ) earthworm + -ālis -al ¹