An ultraviolet absorber/screener, used to protect polymers against damage by UV light.

(organic chemistry) The carboxylic acid 4-isopropylbenzoic acid derived from cumin

(historical) A Norman who settled in Sicily during or after the Norman conquest of southern Italy, or a descendant of one.

An allotrope of carbon, consisting of planes of carbon atoms arranged in hexagonal arrays with the planes stacked loosely, that is used as a dry lubricant, in lead pencils, and as a moderator in ...