What does daguerreotypy mean?
Daguerreotypy is the historic photographic process introduced by the French inventor Louis Daguerre and publicly announced in 1839, widely regarded as the birth of practical photography. In this method, a highly polished silver-plated copper sheet is exposed to iodine vapors to make its surface light-sensitive, then placed in a camera and later developed over heated mercury vapor and fixed with salt solution. The result is a unique, direct-positive image with remarkable detail but no negative, so each plate is one of a kind. The word also denotes the broader craft or profession of producing such pictures. Today daguerreotypy survives chiefly as a term of historical and scholarly interest, invoked by museums, collectors, and historians of photography, since the technique was largely supplanted within a few decades by cheaper, reproducible processes such as those using glass negatives.
nounThe earliest publicly announced photographic process, in which an image is produced on a silver-coated copper plate sensitized with iodine vapors and developed with mercury vapor; it also refers to the art or practice of making such images.
- The daguerreotype photographic process itself, invented by Louis Daguerre in France in the late 1830s.
- The practice, craft, or business of making images by that process.
"The museum's exhibition traced the rise and fall of daguerreotypy in mid-nineteenth-century portraiture."
"Daguerreotypy required subjects to hold perfectly still for several minutes to avoid blurring the image."
"By the 1850s, daguerreotypy had given way in popularity to cheaper processes printed from glass-plate negatives."
Rarely pluralized; the singular form is standard even when referring to multiple instances of the process.
"Regional variations in daguerreotypies are documented in studies of nineteenth-century studios."
Named after French inventor Louis Daguerre, this process could produce a single, unrepeatable image on a polished silver plate — no negatives, no copies — and for about twenty minutes of exposure at first, your portrait sat still while history was made.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of daguerreotypy
The word derives from the name of the French artist and inventor Louis Daguerre (1787–1851), combined with the Greek-derived suffix '-typy', from 'typos', meaning impression or mark. It entered English in the early 1840s, shortly after the announcement of Daguerre's photographic method in 1839, alongside the related word 'daguerreotype'. The same naming pattern appears in other coinages honoring inventors, and the '-type/-typy' element connects it to words such as 'stereotype' and 'monotype'.
How daguerreotypy is actually used
A formal, historical term used mainly in scholarly writing about photography, art history, and nineteenth-century material culture. In everyday speech people almost always say 'daguerreotype' instead, referring to either the object or loosely the process.
Easily confused with daguerreotypy
A daguerreotype is the finished image or plate itself, while daguerreotypy is the process or practice of producing such images.