ferrotype

noun
fer·​ro·​type | \ ˈfer-ə-ˌtīp How to pronounce ferrotype (audio) \

Definition of ferrotype

1 : a positive photograph made by a collodion process on a thin iron plate having a darkened surface

called also tintype

2 : the process by which a ferrotype is made

First Known Use of ferrotype

1843, in the meaning defined at sense 1

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