Meaning & use

thorac-

prefix·Advanced

A combining form meaning relating to the thorax, or chest, used in medical terminology.

See it in a sentence

Doctors use the prefix thorac- to build words such as thoracic and thoracotomy, both related to the chest.

A thoracentesis, formed with thorac-, is a procedure that removes fluid from around the lungs.

A note on using this word

Thorac- comes from the Greek thorax, meaning chest or breastplate, and appears in many chest-related medical terms.

Words with a similar meaning

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