noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A greenhouse kept at a relatively low temperature.
2. 2
   A cool state in global climate, but less cold than a icehouse state.

Synonyms

All synonyms

cold storageconservatoryglasshousegreenhousehotbedhothouse

Etymology

From cool + house.

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