Relating to or produced by autoradiography; involving the creation of images using the radiation emitted by radioactive substances.
Derived from 'autoradiograph' with the addition of the adjective suffix '-ic.' This became a standard technical term in biochemistry and molecular biology research in the late 20th century.
If you're reading about 'autoradiographic images' in a science paper, it means scientists looked at pictures created by letting radioactive substances do their own imaging—it's clever because the thing being studied takes its own picture.
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