A surname from German.

(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

(informal, humorous, neologism) A period of six months

A female given name from the Germanic languages, the German equivalent of Freda.

(US) A small deep-fried pastry

plural of friedcake

plural of Friedman unit

(mineralogy) An orthorhombic-pyramidal silver gray mineral containing bismuth, copper, lead, and sulfur.

(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