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tar·so·met·a·tar·sus

(tär′sō-mĕt′ə-tärsəs)

n. pl. tar·so·met·a·tar·si (-sī, -sē)

A compound bone between the tibia and the toes of a bird's leg, formed by fusion of the tarsal and metatarsal bones.

tar′so·met′a·tarsal (-tärsəl) adj.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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