From Longman Dictionary of Contemporary Englishcupfulcup‧ful /ˈkʌpfʊl/ noun [countable] TMthe amount that a cup can hold
Examples from the Corpus
cupful• Kids warmed up to worms, connected with electricity and watched calcite crystals bubble in a cupful of vinegar.• In the pot, it gives up a rich aromatic broth and yields over a cupful of nutty meat.• The girl went to the sink and pumped a cupful of water.• They seemed quite content to catch no more than a cupful of minute shrimp.• Then she poured him another cupful, and set it carefully before him.• Every cupful of heated water is a measure of valuable time. 