actinautographic

adjective

ac·​tin·​au·​to·​graph·​ic

¦ak-tə-ˌnȯ-tə-¦gra-fik

: capable of producing a developable impression on light-sensitive material without contact

—used of substances (such as zinc)

actinautography

¦ak-tə-ˌnȯ-ˈtä-grə-fē

noun

plural -es

Word History

Etymology

actin- + autographic

First Known Use

circa 1905, in the meaning defined above

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