iso·​graph | \ -ˌgraf, -rȧf \
plural -s

Definition of isograph

1 : an instrument consisting of two short straightedges connected by a large circular joint marked with angular degrees that combines the functions of a protractor and a set square
2 : an electronic calculator for finding both real and imaginary roots of algebraic equations

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History and Etymology for isograph

is- + -graph

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Cite this Entry

“Isograph.” The Dictionary, Merriam-Webster Inc., Accessed 23 January 2020.

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out of the ordinary or unreasonable

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