(biochemistry) Any enzyme (such as catalase itself) that contains at least one reactive iron atom

(organic chemistry) A siderophore N-[3-[(2S,5S,8S,14R)-5,8-bis[3-[acetyl(hydroxy)amino]propyl]-14-(hydroxymethyl)-3,6,9,12,15,18-hexaoxo-1,4,7,10,13,16-hexazacyclooctadec-2-yl]propyl]-N-hydroxyacetamide;iron in Aspergillus fumigatus.

(geology) A ferruginous concrete conglomerate

plural of ferrichrome

plural of ferricrete

(slang, obsolete, rare) A knockdown blow; a good thrashing.

A surname from Irish.

plural of Ferrick

plural of ferricobalt

(often attributive) An audio cassette tape formulation consisting of fine ferric particles encapsulated in a thin layer of cobalt-iron mix.