noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any material that forms a colloid (especially a gel) when mixed with water.
2. 2
   a substance that forms a gel with water wordnet
3. 3
   Any material that forms a colloid (especially a gel) when mixed with water.; Such a material, made from agar, used to make dental impressions.

Etymology

From hydro- + colloid.

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