Cŭs'tard-āp'ple, n.

noun

n. (Bot.) A plant, a species of the anona (A. squamosa), growing in the West Indies, whose fruit is of the size of a tennis-ball, of an orange color, containing a yellowish eatable pulp, of the consistence of custard.

An engraved illustration of a custard apple cut open to show its segmented flesh, with leaves and a whole fruit beside it.
Custard-apple.