Definition of theed:
(n) :
(puristic, rare) Synonym of atheed.
(n) :
Acronym of tetrahydroxyethylethylenediamine. [(chemistry) A synthetic derivative of ethylenediamine containing four hydroxyl groups and a C₂H₅ radical used in the preparation of detergents, emulsifiers, resins, plasticizers, toxicants, chelating agents, germicides, de-emulsifiers, and pharmaceuticals.]