The Collaborative International Dictionary of English v.0.48:

gooseflesh \gooseflesh\ n.
   A peculiar roughness of the skin produced by cold or fear, in
   which the hair follicles become erect and form bumps on the
   skin; -- called also goose skin, goose pimples, goose
   bumps.

   Syn: goose bumps, goose pimples, goose skin.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

gooseflesh
    n 1: reflex erection of hairs of the skin in response to cold or
         emotional stress or skin irritation [syn: pilomotor
         reflex, gooseflesh, goose bump, goosebump, goose
         pimple, goose skin, horripilation]