Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of optigraph is as below...

Optigraph :: Optigraph (a.) A telescope with a diagonal eyepiece, suspended vertically in gimbals by the object end beneath a fixed diagonal plane mirror. It is used for delineating landscapes, by means of a pencil at the eye end which leaves the delineation on paper..

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