Definition, Meaning & Synonyms

acini

noun
/ˈæsɪnaɪ/
Definition
Acini are small, grape-like clusters of cells that form exocrine glands, such as those in the pancreas and salivary glands.
Examples
  • The acini in the pancreas secrete digestive enzymes into the small intestine.
  • Salivary acini produce saliva to aid in digestion and keep the mouth moist.
  • Under a microscope, the acini structure resembles clusters of tiny grapes.
Meaning
The term ‘acini’ refers to the microscopic structures that are involved in the secretion of substances in certain glands.
Synonyms
  • glandular clusters
  • alveoli (in some contexts)
  • secretory units