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Meaning of RODS

 
Webster's 1913 Dictionary
 
 Definition: 
\
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.

 
Medical Dictionary
 
 Definition: Long, slender structures within the retina that perceive faint light. Also, rod-shaped bacteria (bacilli).
 
Glossary
 
 Definition: cells of the retina of the eye that are sensitive to the presence or absence of light; function in black-and-white vision. ~
 

 

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