Acinus-refers to the expression: each of the grains that compose a compound fruit, for example, the BlackBerry-
It is a group of specialized cells of a gland that allow secretion. Cluster.
ACINO: Each one of the terminals of a narrow tube or the lobes of a compound gland, as the pulmonary alveoli. Also called acini.
Soft, transparent, and juicy fruit such as grapes
