adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A type of spinneret of a spider formed of spherical particles

Adjective

1. 1
   Having the form of a cluster of grapes; clustered like grapes.
2. 2
   Full of small kernels like a grape.

Etymology

Latin acinus (“grape, grapestone”) + -form. Compare French aciniforme.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.