noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A fleecy cloud formation consisting of large whitish or greyish globular cloudlets with shaded portions, often grouped in flocks or rows. (Abbreviated Ac.)
2. 2
   a cumulus cloud at an intermediate altitude of 2 or 3 miles wordnet

Synonyms

All synonyms

altocumulus cloud

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