synarthrodial
|syn-ar-thro-di-al|
🇺🇸
/ˌsɪnɑrˈθroʊdiəl/
🇬🇧
/ˌsɪnɑːˈθrəʊdɪəl/
of immovable joints; fused connection
Etymology
'synarthrodial' originates from 'New Latin (via Greek)', specifically the word 'synarthrōsis', where 'syn-' meant 'together' and 'arthron' meant 'joint'.
'synarthrōsis' entered New Latin as 'synarthrosis', and the English adjective was then formed with the suffix '-al', eventually becoming the modern English word 'synarthrodial'.
Initially, it meant 'pertaining to immovable joints', and this meaning has remained essentially the same in modern usage.
Meanings by Part of Speech
Adjective 1
of or relating to a synarthrosis; describing a joint that permits no or almost no movement.
The cranial sutures are synarthrodial joints.
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Adjective 2
pertaining specifically to fibrous unions such as skull sutures, where bones are directly joined without a synovial cavity.
Some reptiles have a synarthrodial connection between certain cranial bones.
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Last updated: 2025/08/10 22:58