noun ak·to·graph \ˈak-tə-ˌgraf\

Definition of aktograph



  1. :  a device for recording the movements of a caged but not restrained experimental animal

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Origin and Etymology of aktograph

German, from Latin actus (past participle of agere to do, drive) + German -graph — more at agent

First Known Use: 1915

Seen and Heard

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feeling or affected by lethargy

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