Definition of ambrotype
: a positive picture made of a photographic negative on glass backed by a dark surface
Recent Examples of ambrotype from the Web
An ambrotype is a photograph created on a glass plate that has been coated and sensitized in a chemical bath.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ambrotype'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of ambrotype
Greek ambrotos + English type
First Known Use: 1854
Seen and Heard
What made you want to look up ambrotype? Please tell us where you read or heard it (including the quote, if possible).