The Collaborative International Dictionary of English v.0.48:

Cocktail \Cock"tail`\, n.
   1. A beverage made of brandy, whisky, or gin, iced, flavored,
      and sweetened. [U. S.]
      [1913 Webster]

   2. (Stock Breeding) A horse, not of pure breed, but having
      only one eighth or one sixteenth impure blood in his
      veins. --Darwin.
      [1913 Webster]

   3. A mean, half-hearted fellow; a coward. [Slang, Eng.]
      [1913 Webster]

            It was in the second affair that poor little Barney
            showed he was a cocktail.             --Thackeray.
      [1913 Webster]

   4. (Zool.) A species of rove beetle; -- so called from its
      habit of elevating the tail.
      [1913 Webster]

WordNet (r) 3.0 (2006):

cocktail
    n 1: a short mixed drink
    2: an appetizer served as a first course at a meal

The Free On-line Dictionary of Computing (19 January 2023):

GMD Toolbox for Compiler Construction
Cocktail

   (Or Cocktail) A huge set of compiler building tools for
   MS-DOS, Unix and OS/2.

   parser generator (LALR -> C, Modula-2), documentation, parser
   generator (LL(1) -> C, Modula-2), tests, scanner generator (->
   C, Modula-2), tests translator (Extended BNF -> BNF),
   translator (Modula-2 -> C), translator (BNF (yacc) -> Extended
   BNF), examples abstract syntax tree generator,
   attribute-evaluator generator, code generator

   The MS-DOS version requires DJ Delorie's DOS extender
   (go32) and the OS/2 version requires the emx programming
   environment.

   (ftp://ftp.karlsruhe.gmd.de/pub/cocktail/dos).  OS/2 FTP
   (ftp://ftp.eb.ele.tue.nl/pub/src/cocktail/dos-os2.zoo).

   Mailing list: listserv@eb.ele.tue.nl (subscribe to Cocktail).
   E-mail: Josef Grosch , Willem Jan
   Withagen  (OS/2).

   (1992-01-01)