WordNet (r) 3.0 (2006):

manduction
    n 1: the act of participating in the celebration of the
         Eucharist; "the governor took Communion with the rest of
         the congregation" [syn: Communion, Holy Communion,
         sacramental manduction, manduction]
    2: biting and grinding food in your mouth so it becomes soft
       enough to swallow [syn: chew, chewing, mastication,
       manduction]