semipostal


semipostal

(ˌsɛmɪˈpəʊstəl) adj (Philately) philately chiefly US denoting stamps where all or part of the receipts from sale are given to some charitable cause

sem•i•post•al

(ˌsɛm iˈpoʊs tl, ˌsɛm aɪ-)
n. a postage stamp sold above its face value, the excess being used for a nonpostal purpose.