Found 2 items, similar to humectant.
English → English (WordNet) Definition: humectant humectant n : any substance that is added to another substance to keep it moist
English → English (gcide) Definition: Humectant Humectant \Hu*mec"tant\, a. [L. humectans, p. pr.] Diluent. -- n. A diluent drink or medicine. [Obs.] [1913 Webster]