noun, plural ac·i·ni [as-uh-nahy] /ˈæs əˌnaɪ/.
Botany. one of the small drupelets or berries of an aggregate, baccate fruit, as the blackberry.
a berry, as a grape or currant.
- a minute rounded lobule.
- the smallest secreting portion of a gland.
Origin of acinus
1725–35; < Latin: grape, berry, seed of a berryRelated formsac·i·nar [as-uh-ner, -nahr] /ˈæs ə nər, -ˌnɑr/, a·cin·ic [uh-sin-ik] /əˈsɪn ɪk/, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for acini
Historical Examples of acini
The centres of the acini showed parenchymatous and fatty degeneration.
Those of the vena portæ spread around the acini, or granulations of the liver; and 4.
The acini surrounded with a dense, cellular texture, paler than themselves; 2.
The glands of Lieberkhn elongate, the number of acini increases, and the contained cells multiply.
The acini are imbedded in a mass of adipose tissue which contains the vessels and nerves.
British Dictionary definitions for acini
noun plural -ni (-ˌnaɪ)
Derived Formsacinic (əˈsɪnɪk), acinous or acinose, adjective
anatomy any of the terminal saclike portions of a compound gland
botany any of the small drupes that make up the fruit of the blackberry, raspberry, etc
botany obsolete a collection of berries, such as a bunch of grapes
Word Origin for acinus
C18: New Latin, from Latin: grape, berry
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
n. pl. ac•i•ni (-nī′)
Related formsa•cin′ic (ə-sĭn′ĭk) null null adj.
Any of several minute grape-shaped secretory portions of an acinous gland.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.