Medical Dictionary

palmar interosseus

noun

Medical Definition of PALMAR INTEROSSEUS

:  any of three small muscles of the palmar surface of the hand each of which arises from, extends along, and inserts on the side of the second, fourth, or fifth finger facing the middle finger and which acts to adduct its finger toward the middle finger, flex its metacarpophalangeal joint, and extend its distal two phalanges—called also interosseus palmaris, palmar interosseous muscle

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears