nounWord forms: plural ˌlumbriˈcaˌles (ˌlʌmbrɪˈkeɪˌliz
any of four small muscles in the palm
of the hand and in the sole
of the foot
: also ˈlumbrical (ˌlʌmbrɪkəl
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'lumbricalis'ModL < L lumbricus, intestinal worm, earthworm: from the shape of the muscles