auropalpebral reflex

co·chle·o·pal·pe·bral re·flex

a form of the wink reflex in which there is a contraction, sometimes very slight, of the orbicularis palpebrarum muscle to an intense sound.
See also: startle reflex. Synonym(s): acousticopalpebral reflex, auropalpebral reflex, cochleo-orbicular reflex

au·ro·pal·pe·bral re·flex

(awr'ō-pal'pĕ-brăl rē'fleks) Brisk closure of the eyes in reaction to sudden presentation of a loud noise.