noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A collection of plants, typically in a garden, that have the same affinity for water .
2. 2
   Areas dedicated to growing rare or exotic plants under specific conditions, in particular in hydroponics indoor cultures.

Etymology

From hydro- + zone.

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