What does daguerreotype mean?
A daguerreotype is one of the earliest forms of photograph, created through a process introduced publicly by French inventor Louis Daguerre in 1839. To produce one, a silver-coated copper plate was polished to a mirror-like finish, treated with iodine vapor to make it light-sensitive, exposed in a camera, and then developed over heated mercury. The result was a remarkably sharp, detailed image on a unique metal surface — because no negative was involved, each daguerreotype could not be reproduced exactly. For roughly two decades it dominated portrait photography before being supplanted by less expensive processes such as the ambrotype and tintype. Today the word appears mostly in historical, artistic, and scholarly contexts, referring either to the surviving object or to the technique itself. Its association with meticulous craftsmanship and irreplaceable images gives it a distinctly archival, reverent connotation.
nounA photograph produced by an early photographic process, invented by Louis Daguerre in the 1830s, in which a highly detailed image is formed on a silver-coated copper plate sensitized with iodine vapors and developed with mercury vapor.
- An early photograph made on a light-sensitive, silvered copper plate using Daguerre's process.
- The photographic process itself by which such images are made.
"The museum's collection includes a rare daguerreotype of the Paris skyline taken in 1839."
"She studied the daguerreotype closely, marveling at the crispness of the sitter's face despite its age."
"By the 1850s, cheaper printing processes had begun to displace the daguerreotype from commercial studios."
Standard pluralization applies; commonly used when discussing collections or archives of such photographs.
"The exhibition displayed dozens of daguerreotypes from the 1840s and 1850s."
Each daguerreotype is a one-of-a-kind image — no negatives existed, so no two were ever alike.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of daguerreotype
The word 'daguerreotype' derives from the name of Louis Daguerre (1787–1851), the French artist and photographer who perfected the process, combined with the Greek-derived element '-type' meaning 'impression' or 'form.' It entered English shortly after Daguerre announced his invention in 1839, when the term was widely adopted across Europe and America. Related words sharing this '-type' suffix include calotype (Talbot's rival paper-negative process) and stereotype, all drawing on Greek roots relating to impression or mold.
How daguerreotype is actually used
Primarily a historical/technical term used in discussions of early photography, art history, and museums. Register: formal or specialist; uncommon in everyday speech. The word can refer both to the physical object (the plate itself) and to the process that created it.
Easily confused with daguerreotype
A calotype is an early photographic process using paper negatives (invented by William Henry Fox Talbot), whereas a daguerreotype produces a unique direct-positive image on a metal plate.