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post·fer·til·iza·tion | \ ˌpōst-ˌfərt-ᵊl-ə-ˈzā-shən 
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\Medical Definition of postfertilization
(Entry 1 of 2)
: occurring in the period following fertilization
the early postfertilization stages of embryonic development— N. A. Wivel & LeRoy Walters
postfertilization
adverbMedical Definition of postfertilization (Entry 2 of 2)
: after fertilization
changes occurring 48 hours postfertilization
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