“The eucharist;...is not a wafer but an event”
The Eucharist:
356. Why does Christ give us His own body and blood in the Holy Eucharist?
Christ gives us His own body and blood in the Holy Eucharist: first, to be offered as a sacrifice commemorating and renewing for all time the sacrifice of the cross; second, to be received by the faithful in Holy Communion; third, to remain ever on our altars as the proof of His love for us, and to be worshipped by us. http://www.ewtn.com/faith/teachings/eucha1a.htm
I do not rely solely on secular online dictionaries for my understanding of religious things. I suggest you don’t either.
I posted etymology, not definition
He gave His body once, for all.