The Collaborative International Dictionary of English v.0.48:

Band-Aid \Band"-Aid`\, band-aid \band"-aid`\, Band Aid \Band"
Aid\ (b[a^]nd"[=a]d`) n. [from a Trademark.]
   An adhesive bandage, composed of a short ribbon of cloth or
   plastic with an adhesive coating on one side, and having a
   patch of gauze at the center. It is used to cover small cuts,
   abrasions, or blisters on the skin, and may be easily applied
   to and removed from the skin with no additional material.
   Originally a trademark, the term has been popularly used
   generically. [trademark]
   [WordNet 1.5]

   2. A hurried repair; a temporary fix for a minor problem.

   Note: The term has been used metaphorically to mean an
         ineffective cosmetic solution, when used on a serious
         problem.

   Syn: quick fix, quickie, quicky.
        [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

Band Aid
    n 1: trade name for an adhesive bandage to cover small cuts or
         blisters
    2: hurried repair [syn: band aid, quick fix, quickie,
       quicky]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "Band Aid":
   Ace bandage, adhesive tape, application, band, bandage, bandaging,
   binder, brace, cast, cataplasm, compress, cotton, court plaster,
   cravat, dressing, elastic bandage, epithem, four-tailed bandage,
   gauze, lint, plaster, plaster cast, pledget, poultice, roller,
   roller bandage, rubber bandage, sling, splint, sponge, stupe,
   tampon, tape, tent, tourniquet, triangular bandage