diapophysis
noun
di·apoph·y·sis
| \ ˌdī-ə-ˈpäf-ə-səs
\
\
plural diapophyses\ -ˌsēz
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\
Medical Definition of diapophysis
: a transverse process of a vertebra that is an outgrowth of the neural arch on the dorsal side
especially
: one of the dorsal pair of such processes when two or more pairs are present