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

comma \com"ma\, n. l. comma part of a sentence, comma, gr. ?
   clause, fr. ? to cut off. cf. capon.
   1. a character or point , marking the smallest divisions of
      a sentence, written or printed.
      1913 webster

   2. mus. a small interval the difference between a major
      and minor half step, seldom used except by tuners.
      1913 webster

   comma bacillus physiol., a variety of bacillus shaped
      like a comma, found in the intestines of patients
      suffering from cholera. it is considered by some as having
      a special relation to the disease; -- called also cholera
      bacillus.

   comma butterfly zool., an american butterfly grapta
      comma, having a white comma-shaped marking on the under
      side of the wings.
      1913 webster
see also:
capon comma bacillus cholera bacillus comma butterfly grapta comma 

[2] : WordNet (r) 2.0

comma
     n 1: a punctuation mark , used to indicate the separation of
          elements within the grammatical structure of a sentence
     2: anglewing butterfly with a comma-shaped mark on the
        underside of each hind wing syn: comma butterfly, polygonia
        comma
see also:
comma butterfly polygonia comma 

[3] : Moby Thesaurus II by Grady Ward, 1.0

31 moby thesaurus words for "comma":
   ampersand, angle brackets, apostrophe, boundary, braces, caesura,
   colon, dash, decimal point, diagonal, dot, ellipsis,
   exclamation mark, full stop, hyphen, interval, juncture, lull,
   parens, parentheses, pause, period, point, question mark,
   quotation marks, quotes, semicolon, single quotes, solidus, stop,
   virgule

[4] : The Free On-line Dictionary of Computing (27 SEP 03)

comma
     
        computable mathematics.
     
        an esprit project at ku nijmegen.
     
        1994-11-30
     
     
see also:
esprit nijmegen 

[5] : The Free On-line Dictionary of Computing (27 SEP 03)

comma
     
         "," ascii character 44.  common names: itu-t:
        comma.  rare: itu-t: cedilla; intercal: tail.
     
        in the c programming language, "," is an operator which
        evaluates its first argument which presumably has
        side-effects and then returns the value of its second
        argument.  this is useful in "for" statements and macros.
     
        1995-03-10
     
     
see also:
ascii itu-t intercal c side-effect macro 

Comma >> C Words
Comma, definition of term: Comma
comma_pag1.html

Comma Bacillus >> C Words
Comma Bacillus, definition of term: Comma Bacillus
comma+bacillus_pag1.html