First Known Use: circa 1811
Dictionary
inion
noun in·i·on \ˈi-nē-ˌän, -ən\
Definition of INION
: the external occipital protuberance of the skull
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Origin of INION
New Latin, from Greek, back of the head, diminutive of in-, is sinew, tendon
Medical Dictionary
inion
noun in·i·on \ˈin-ē-ˌän, -ən\
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