Entry 1 sense Webster, 1913 Ferrotype /fĕr'-ət-īpˌ/ · Fer·ro·type · IPA /fˈɛrətˌaɪp/ 01 n. A photographic picture taken on an iron plate by a collodion process; -- familiarly called tintype. 1. A photographic picture taken on an iron plate by a collodion process; -- familiarly called tintype.