1. The act of finding out or inventing; contrivance or construction of
that which has not before existed; as, the invention of logarithms; the
invention of the art of printing.
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As the search of it [truth] is the duty, so the invention will be
the happiness of man.
Tatham.
2. That which is invented; an original contrivance or construction; a
device; as, this fable was the invention of Esop; that falsehood was
her own invention.
We entered by the drawbridge, which has an invention to let one
fall if not premonished.
Evelyn.