Growstones

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A substrate for growing plants, made from recycled glass, that can be used for soilless purposes or as a soil conditioner. plural, plural-only

Etymology

From grow + stones.

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