Definition of immission
b
obsolete
:something introduced
2
:commixture 2
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immission
noun
im·mis·sion
\
(ˈ)i¦mishən
\
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Origin and Etymology of immission
Latin immission-, immissio, from immissus past participle of immittere to send in (from in- 2in- + mittere to send) + -ion-, -io -ion
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