IPA: /ˌhaɪdrəˈkɒlɔɪd/
KK: /haɪdroʊˈkɒlɔɪd/
A substance that can create a gel when mixed with water.
The chef used a hydrocolloid to thicken the sauce.
Hydrocolloid → It is formed from "hydro-" (from Greek "hydor", meaning water) and "colloid" (from Greek "kolla", meaning glue, and "eidos", meaning form or shape). The word describes a substance that has a gel-like consistency in water, resembling glue in its texture.
Think of 'water' ('hydro-') and a 'glue-like' substance ('colloid') to remember that hydrocolloid refers to a gel-like material that forms in water.