[tahr-soh-met-uh-tahr-suh s]

noun, plural tar·so·met·a·tar·si [tahr-soh-met-uh-tahr-sahy, -see] /ˌtɑr soʊˌmɛt əˈtɑr saɪ, -si/. Ornithology.

the large bone in the lower leg of a bird with which the toe bones articulate, formed by the fusion of tarsal and metatarsal bones.

Origin of tarsometatarsus

First recorded in 1850–55; tarso- + metatarsus
Related formstar·so·met·a·tar·sal, adjective
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British Dictionary definitions for tarsometatarsus


noun plural -si (-saɪ)

a bone in the lower part of a bird's leg consisting of the metatarsal bones and some of the tarsal bones fused together
Derived Formstarsometatarsal, adjective

Word Origin for tarsometatarsus

C19: tarso-, from tarsus + metatarsus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012