📚 Io, proper noun. 🔉 /ˈʌɪəʊ/ 🇬🇧 ❓ Definition (Greek Mythology): A priestess of Hera who was loved by Zeus. Trying to protect her from the jealousy of Hera, Zeus turned Io into a heifer. Hera sent a gadfly to torture the heifer, which then fled across the world and finally reached Egypt, where Zeus turned her back into human form. ❗️ Examples: No examples. ━━━━━━━━━━━━━ 🌀 @cambridge_dic