Of or pertaining to acini or berry-like glandular structures; relating to clustered sac-like formations.
From Latin 'acinus' (berry) plus '-ary' (relating to). This adjectival form developed alongside 'acinar' as another way to describe berry-clustered anatomical structures.
Both 'acinar' and 'acinary' exist because English borrowed from Latin during different periods—it's like having two roads to the same destination, and scientists just slowly abandoned the longer one!
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