| 释义 |
di·az·o·type
\-ˌtīp\ noun
Etymology: diaz- + -type
: a photograph or photocopy produced on a surface (as paper) by coating with a solution containing a diazo compound that is decomposed on exposure to light, the compound in the unexposed parts being then converted to a colored image formed by an azo dye by developing especially with an alkaline solution or gaseous ammonia |