(organic chemistry) Any compound that has eight acetate groups (typically of a sugar)

(chemistry) Any compound containing eight carbonate groups in each molecule or unit cell

(inorganic chemistry, in combination) Eight calcium atoms or ions in a compound

(chemistry) any bromide containing eight bromine atoms in each molecule

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

(pharmacology) An anesthetic drug.

(chemistry, in combination) Eight atoms of copper in a chemical compound.

(organic chemistry) Any salt or ester of an octacosadienoic acid

(geometry) A polygon with 80 sides and 80 angles.

(organic chemistry) The toxic perchloro derivative of dibenzofuran 1,2,3,4,6,7,8,9-octachlorodibenzofuran