Definition of methylcellulose in US English:

methylcellulose

noun

  • Any of a range of methylated derivatives of cellulose, varying in the number of methoxyl groups, which form viscous solutions and can be used as thickening, emulsifying, and stabilizing agents (especially in foodstuffs), as a laxative, and in adhesives.

Origin

1920s; earliest use found in Journal of the Chemical Society. From methyl + cellulose.

Pronunciation

methylcellulose

/ˌmiːθʌɪlˈsɛljʊləʊs/