Naphthylamine

Naph`thyl*am"ine

(?), n. (Chem.) One of two basic amido derivatives of naphthalene, C10H7.NH2, forming crystalline solids.
[1913 Webster]

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Na*pie"ri*an

,

Na*pe"ri*an

, } (?), a. Of, pertaining to, or discovered by, Napier, or Naper.
[1913 Webster]

Naperian logarithms. See under Logarithms.
[1913 Webster]

{

Na"pi*er's bones`

(?),

Na"pi*er's rods`

(?) }. A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of multiplication and division.
[1913 Webster]

 

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Mon 10th December 2018