The Collaborative International Dictionary
Caperberry
Caperberry \Ca"per*ber`ry\, n.
The small olive-shaped berry of the European and Oriental caper, said to be used in pickles and as a condiment.
The currantlike fruit of the African and Arabian caper ( Capparis sodado).
Wiktionary
caperberry
n. 1 ''Capparis spinosa'', a perennial winter-deciduous plant that bears rounded, fleshy leaves and large white to pinkish-white flowers, often eaten as pickled buds (caper#Etymology 3s). 2 A fruit produced by the flowering bud of the caper, sometimes served pickled as a mezze.