The Collaborative International Dictionary of English v.0.48:

Fryer \Fry"er\, n.
   1. Something or someone that fries.
      [1913 Webster]

   2. A young chicken or other food item suitable to be cooked
      by frying.
      [PJC]

   3. A pot equipped with a removable basket, designed to be
      used for frying objects; -- also called deep fryer.
      [PJC]

WordNet (r) 3.0 (2006):

fryer
    n 1: flesh of a medium-sized young chicken suitable for frying
         [syn: fryer, frier, pullet]

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "fryer":
   Bantam, Cornish hen, banty, barn-door fowl, barnyard fowl, biddy,
   birdling, broiler, brooder, broody hen, caille, calf, canard,
   caneton, capon, catling, chanticleer, chapon, chick, chickabiddy,
   chicken, chickling, chicky, cock, cockerel, colt, cub, dindon,
   dogie, domestic fowl, drake, duck, duckling, dunghill fowl, faisan,
   fawn, fledgling, foal, fowl, game fowl, gander, gobbler, goose,
   gosling, grouse, guinea cock, guinea fowl, guinea hen, hen,
   hen turkey, kid, kit, kitten, lamb, lambkin, litter, nest,
   nestling, oie, partlet, partridge, pheasant, pigeon, pigeonneau,
   piglet, pigling, polliwog, poulard, poulet, poult, poultry, pullet,
   pup, puppy, quail, roaster, rooster, setting hen, shoat,
   spring chicken, squab, stewing chicken, tadpole, tom, tom turkey,
   turkey, turkey gobbler, turkey-cock, volaille, weaner, whelp,
   wild duck, yeanling