A surname.

plural of Friedel

(chemistry) a substitution reaction in which an alkyl or acyl functional group replaces a hydrogen atom of an aromatic nucleus; it is catalyzed by aluminium chloride

plural of Friedel-Crafts acylation

(chemistry) A chemical reaction involving the acylation of aromatic rings.

plural of Friedel-Crafts reaction

(mineralogy) A monoclinic-prismatic mineral containing chlorine, hydrogen, manganese, oxygen, and silicon.

(organic chemistry) A specific triterpene hydrocarbon; any of many naturally-occurring derivatives of this compound

plural of friedelane

plural of friedelin