hor·rip·i·la·tion (hô-rĭp'ə-lā'shən, hŏ-) n. The bristling of the body hair, as from fear or cold; goose bumps.
[Late Latin horripilātiō, horripilātiōn-, from Latin horripilātus, past participle of horripilāre, to bristle with hairs : horrēre, to tremble + pilāre, to grow hair (from pilus, hair).] hor·rip'i·late' v.