1. When capitalized, the female members of the older gods who preceded the Olympians and were the children of Uranus (Heaven) and Gaia (Earth): The Titanesses were also of great strength and size just as their brothers were.
2. When not capitalized, a woman of very great strength, intellect, or importance: More and more women in our modern times are becoming titanesses as they take the places of men in politics, businesses, and other areas of authority.