os trapezium

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Definitions from WordNet

Noun os trapezium has 1 sense

trapezium, trapezium bone, os trapezium - the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
--₁ is a kind of carpal bone, carpal, wrist bone

Definitions from the Web

Term: Os Trapezium

Part of Speech: Noun

Sense 1: In human anatomy, the os trapezium refers to one of the eight small carpal bones located in the wrist of the hand. It is situated next to the metacarpal bone of the thumb.

Sample Sentence 1: He fractured his os trapezium while playing tennis and had to wear a cast for several weeks.

Sample Sentence 2: The surgeon skillfully replaced the damaged os trapezium with a synthetic implant.

Sense 2: In zoology, the os trapezium is also the name given to a bone present in the limb structure of some species, particularly quadrupeds.

Sample Sentence 1: The os trapezium provides stability and support to the animal's leg while it moves.

Sample Sentence 2: Researchers are studying the evolutionary changes in the os trapezium of various mammalian species.