acinus noun. ['asɪnǝs] Pl. -ni [-nʌɪ]. M18.
[Latin = berry growing in a cluster, kernel.]
1. Botany. A small berry growing in a cluster or as part of a compound fruit; a seed of such a berry. Now rare or obsolete. M18.

2. Anatomy. Any of a number of small rounded terminal sacs in a gland, the cells of whose walls secrete into the central cavity; the small portion of lung tissue served by a single terminal bronchiole. M18.

■ acinar adjective = acinous M20.

■ a'ciniform adjective resembling a grape or a bunch of grapes M19.

■ acinous adjective (Anatomy) consisting of or pertaining to acini M19.

[TahlilGaran] English Dictionary ▲