IPA: /ˈpɪtʃərfəl/
KK: /ˈpɪtʃərfəl/
The amount of liquid that a pitcher can contain.
She poured a pitcherful of lemonade for the picnic.
Pitcherful → The word is formed from "pitcher" (from Old English *piccer*, meaning a container for liquids) and "-ful" (meaning full of). The term "pitcherful" refers to the amount that a pitcher can hold, or being full of what a pitcher contains.
Think of a 'pitcher' as a container for liquids, and '-ful' means full of — so a pitcherful is the amount that fills a pitcher.