1) Acinous 2) Clustered like grapes 3) Shaped like a bunch of grapes 
shaped like a berry
• (a.) Having the form of a cluster of grapes; clustered like grapes. • (a.) Full of small kernels like a grape.
Synonym: acinous. ... Origin: L. Acinus, grape, + forma, shape ... (05 Mar 2000) ... 
(ә-sin´ĭ-form) shaped like a cluster of grapes.
A·cin'i·form adjective [ Latin acinus a grape, grapestone + -form : confer French acinoforme .] 1. Having the form of a cluster of grapes; clustered like grapes. 2. Full of small kernels like a grape. 
Type: Term Pronunciation: a-sin′i-fŏrm Synonyms: acinous
[adj] - shaped like a bunch of grapes
aciniform Shaped like an acinus, or grape.
clustered like grapes. · acinous.