opponens digiti minimi

noun

: a triangular muscle of the hand that arises from the hamate and adjacent flexor retinaculum, is inserted along the ulnar side of the metacarpal of the little finger, and functions to abduct, flex, and rotate the fifth metacarpal in opposing the little finger and thumb

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Cite this Entry

“Opponens digiti minimi.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/opponens%20digiti%20minimi. Accessed 9 Jul. 2026.

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