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amphiarthrodial

amphiarthrodial, a. Anat.
  (ˌæmfɪɑːˈθrəʊdɪəl)
  [mod. f. amphi- + Gr. ἀρθρώδ-ης well-articulated + -ial.]
  Characterized by amphiarthrosis.

1859 Todd Cycl. Anat. & Phys. V. 121/2 The sacrum..is united to the last lumbar vertebra..by an amphi-arthrodial joint. 1879 Morris Anat. Joints 5 Connecting fibro-cartilages occur only in amphiarthrodial joints.

Oxford English Dictionary

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