[1] : The Collaborative International Dictionary of English v.0.48

logarithm \log"arithm\ lo^g".ari^th'm, n. gr.
   lo`gos word, account, proportion + 'ariqmo`s number: cf. f.
   logarithme. math.
   one of a class of auxiliary numbers, devised by john napier,
   of merchiston, scotland 1550-1617, to abridge arithmetical
   calculations, by the use of addition and subtraction in place
   of multiplication and division.

   note: the relation of logarithms to common numbers is that of
         numbers in an arithmetical series to corresponding
         numbers in a geometrical series, so that sums and
         differences of the former indicate respectively
         products and quotients of the latter; thus,
         0 1 2 3 4 indices or logarithms
         1 10 100 1000 10,000 numbers in geometrical progression
         hence, the logarithm of any given number is the
         exponent of a power to which another given invariable
         number, called the base, must be raised in order to
         produce that given number. thus, let 10 be the base,
         then 2 is the logarithm of 100, because 10^2 = 100,
         and 3 is the logarithm of 1,000, because 10^3 =
         1,000.
         1913 webster

   arithmetical complement of a logarithm, the difference
      between a logarithm and the number ten.

   binary logarithms. see under binary.

   common logarithms, or brigg's logarithms, logarithms of
      which the base is 10; -- so called from henry briggs, who
      invented them.

   gauss's logarithms, tables of logarithms constructed for
      facilitating the operation of finding the logarithm of the
      sum of difference of two quantities from the logarithms of
      the quantities, one entry of those tables and two
      additions or subtractions answering the purpose of three
      entries of the common tables and one addition or
      subtraction. they were suggested by the celebrated german
      mathematician karl friedrich gauss died in 1855, and are
      of great service in many astronomical computations.

   hyperbolic logarithm or napierian logarithm or natural
   logarithm, a logarithm devised by john speidell, 1619 of
      which the base is e 2.718281828459045...; -- so called
      from napier, the inventor of logarithms.

   logistic logarithms or proportional logarithms, see under
      logistic.
      1913 webster logarithmetic
see also:
2 3 arithmetical complement of a logarithm binary logarithms binary common logarithms 
brigg's logarithms gauss's logarithms hyperbolic logarithm napierian logarithm natural logarithm 
logistic logarithms proportional logarithms logistic 

[2] : The Collaborative International Dictionary of English v.0.48

binary \bi"nary\, a. l. binarius, fr. bini two by two, two at
   a time, fr. root of bis twice; akin to e. two: cf. f.
   binaire.
   compounded or consisting of two things or parts;
   characterized by two things.
   1913 webster

   binary arithmetic, that in which numbers are expressed
      according to the binary scale, or in which two figures
      only, 0 and 1, are used, in lieu of ten; the cipher
      multiplying everything by two, as in common arithmetic by
      ten. thus, 1 is one; 10 is two; 11 is three; 100 is four,
      etc. --davies  peck.

   binary compound chem., a compound of two elements, or of
      an element and a compound performing the function of an
      element, or of two compounds performing the function of
      elements.

   binary logarithms, a system of logarithms devised by euler
      for facilitating musical calculations, in which 1 is the
      logarithm of 2, instead of 10, as in the common
      logarithms, and the modulus 1.442695 instead of .43429448.
      

   binary measure mus., measure divisible by two or four;
      common time.

   binary nomenclature nat. hist., nomenclature in which the
      names designate both genus and species.

   binary scale arith., a uniform scale of notation whose
      ratio is two.

   binary star astron., a double star whose members have a
      revolution round their common center of gravity.

   binary theory chem., the theory that all chemical
      compounds consist of two constituents of opposite and
      unlike qualities.
      1913 webster
see also:
binary arithmetic binary compound binary logarithms binary measure binary nomenclature binary scale 
binary star binary theory 

Binary >> B Words
Binary, definition of term: Binary
binary_pag1.html

Logarithms >> L Words
Logarithms, definition of term: Logarithms
logarithms_pag1.html

Binary File >> B Words
Binary File, definition of term: Binary File
binary+file_pag1.html

Binary System >> B Words
Binary System, definition of term: Binary System
binary+system_pag1.html

Binary Digit >> B Words
Binary Digit, definition of term: Binary Digit
binary+digit_pag1.html

Binary Code >> B Words
Binary Code, definition of term: Binary Code
binary+code_pag1.html

Binary Compound >> B Words
Binary Compound, definition of term: Binary Compound
binary+compound_pag1.html

Binary logarithms - definition of Binary logarithms by the Free Online ...
...... compound. binary digit. binary file. binary fission. Binary logarithms ... Binary logarithms. Binary logic. Binary logic. Binary Logical Topology ... ..
http://www.thefreedictionary.com/Binary+logarithms, score=100, date indexed=December 22, 2005, 11:59 am

Dictionary.com/binary logarithms
...... Binary.. Common logarithms, or Brigg's logarithms, logarithms of which ... Binary logarithms, a system of logarithms devised by Euler for ... ..
http://dictionary.reference.com/search?q=binary%20logarithms, score=91, date indexed=November 6, 2005, 10:16 pm

Binary logarithms - definition of Binary logarithms by the Free Online ...
...... compound. binary digit. binary file. binary fission. Binary logarithms ... Binary logarithms. Binary logic. Binary logic. Binary Logical Topology ... ..
http://www.thefreedictionary.com/Binary%20logarithms, score=91, date indexed=November 29, 2005, 2:29 pm

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