noun, plural di·ar·thro·ses [dahy-ahr-throh-seez] /ˌdaɪ ɑrˈθroʊ siz/. Anatomy.
a form of articulation that permits maximal motion, as the knee joint.
Origin of diarthrosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -ses (-siːz)
anatomy any freely movable joint, such as the shoulder and hip joints
Word Origin for diarthrosis
C16: New Latin, from di- ² + Greek arthrōsis, from arthroun to fasten by a joint, from arthron joint
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