<p><strong>Noun</strong></p><ul><li>Classical Mythology: the shield or breastplate of Zeus or Athena, bearing at its center the head of the Gorgon.</li><li>Protection; support: under the imperial aegis.</li><li>Sponsorship; auspices: a debate under the aegis of the League of Women Voters.</li><li>Synonyms: patronage.</li></ul>