METATARSUS
metatarsus
(noun) the skeleton of the human foot between the toes and the tarsus; the corresponding part of the foot in birds or of the hind foot in quadrupeds
Source: WordNet® 3.1
Etymology
Noun
metatarsus (plural metatarsi)
The part of the foot between the toes and the ankle, especially its five bones.
Synonyms
• (part of foot): instep
Source: Wiktionary
Met`a*tar"sus, n.; pl. Metatarsi. Etym: [NL. See Meta-, and Tarsus.]
(Anat.)
Definition: That part of the skeleton of the hind or lower limb between the
tarsus and phalanges; metatarse. It consists, in the human foot, of
five bones. See Illustration in Appendix.
Source: Webster’s Unabridged Dictionary 1913 Edition