The Collaborative International Dictionary
Prefecundation
Prefecundation \Pre*fec`un*da"tion\, n. (Physiol.) A term collectively applied to the changes or conditions preceding fecundation, especially to the changes which the ovum undergoes before fecundation.
Wiktionary
prefecundation
n. (context biology dated rare English) The collective changes or conditions precede fecundation, especially those affecting the ovum.