One of the mysteries of the English language finally explained.
Of, relating to, or (especially) connecting the metatarsus and the phalanges.
A metatarso-phalangeal joint.
Early 19th century; earliest use found in Robert Knox (1791–1862), anatomist and ethnologist. From metatarso- + phalangeal, after French metatarso-phalangienne.
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