what is carboxymethyl
Definition - What does Carboxymethyl Cellulose mean? Carboxymethyl Cellulose, also known as Cellulose Gum, is a cellulose derivative which contains carboxymethyl groups that are bounded to hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. The carboxy methyl group is represented as (-CH2-COOH).