Main Entry: ac·i·nus

Pronunciation: \ˈa-sə-nəs\

Function: noun

Inflected Form(s): plural ac·i·ni \-ˌnī\

Etymology: New Latin, from Latin, berry, berry seed

Date: circa 1751

: any of the small sacs terminating the ducts of some exocrine glands and lined with secretory cells

— ac·i·nous \-nəs\ adjective