acinus

A1C3I1N1U1S1
/ˈæsɪnəs/

noun

One of the small grains or drupelets which make up some kinds of fruit, as the blackberry, raspberry, etc.

Scrabble 8

Meanings

nounacinus (plural acini)

plural acini

  1. biologyOne of the small grains or drupelets which make up some kinds of fruit, as the blackberry, raspberry, etc.
  2. biologyA grape-stone.
  3. anatomyOne of the granular masses which constitute a racemose or compound gland, as the pancreas; also, one of the saccular recesses in the lobules of a racemose gland.

    Their smallest lobules were called acini, a term which has also been used to denote the saccular recesses in the lobules […]

    1828, Jones Quain, Quain's elements of anatomy

Origin

  1. Latinacinus“grape, grape-stone”
  2. Englishacinus

Unadapted borrowing from Latin acinus (“grape, grape-stone”); the histopathologic sense comes figuratively from the fancied resemblance (on microscopy) of acinic cells (acinar cells) to bunches of drupelets, berries, or grapes.

Full word history & related roots →

Translations

Czech lalůček
  • lalůčekone of the granular masses which constitute a racemose or compound gland (anatomy)
Indonesian asinus
  • asinusone of the granular masses which constitute a racemose or compound gland (anatomy)
Japanese 腺房
  • 腺房 (senbō)one of the granular masses which constitute a racemose or compound gland (anatomy)
Lithuanian kėkė, acinusas
  • kėkėone of the granular masses which constitute a racemose or compound gland (anatomy)
  • acinusasone of the granular masses which constitute a racemose or compound gland (anatomy)
Malay asinus
  • asinusone of the granular masses which constitute a racemose or compound gland (anatomy)
Romanian acin
  • acinone of the granular masses which constitute a racemose or compound gland (anatomy)
Russian аци́нус, гроздь
  • аци́нус (acínus)one of the granular masses which constitute a racemose or compound gland (anatomy)
  • гроздь (grozdʹ)one of the granular masses which constitute a racemose or compound gland (anatomy)
Cite this entry
APA

acinus. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/acinus

MLA

“acinus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/acinus. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “acinus,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/acinus.

Source: acinus on Wiktionary, CC BY-SA 4.0.