WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. pertaining to one of the small sacs (as in a compound gland)
adj. pertaining to the individual parts making up an aggregate fruit like a blackberry
Word Usage
"In the newly published article, Sangiorgi and Capecchi have shown with their technique that a particular subset of the pancreatic cells, the so-called acinar cells, are indeed stem cells."