In brief
Medusa is the mortal Gorgon whose gaze turns viewers to stone and whose severed head becomes a protective image. She is one of the most charged figures in Greek myth: monster, victim, apotropaic symbol, artistic subject, and modern feminist emblem. A serious account must hold the ancient plurality. Medusa is not one simple story.
Definition
Medusa is a Gorgon in Greek mythology, often described with serpentine hair and a petrifying gaze. In Hesiod, she is one of three Gorgon sisters and the only mortal one; in later traditions, especially Ovid, her transformation is linked to sexual violation by Poseidon in Athena's temple and punishment by Athena. She differs from ordinary monsters because her image also functions protectively: the Gorgoneion appears widely in ancient art as a device to repel harm.
Why this matters
Medusa is difficult because people need different things from her. Some need the ancient monster whose power terrifies. Some need the violated woman whose rage becomes visible. Some need the protective face placed on shields, temples, armor, and thresholds.
The task is not to choose one version and erase the rest. The task is to know which version is being used, and what ethical work it is doing.
The gaze that petrifies
Medusa's gaze is the mythic extreme of being looked at and looking back. To see her is to lose movement. This makes her central to any encyclopedia of sensuality because vision is not neutral here. The gaze is power, danger, defense, and transformation.
Ancient artists repeatedly represented her face, sometimes grotesque, sometimes increasingly beautiful. The Metropolitan Museum of Art notes her ubiquity across Greek and Roman visual culture. That recurrence matters: Medusa is not only narrated. She is displayed, worn, feared, and used.
Violence, beauty, and reception
Ovid's version, in which Medusa is violated by Poseidon and transformed by Athena, has become especially important in modern feminist readings. It should be handled carefully. It is a later Roman literary version, not the whole ancient tradition. But its ethical force is real: it exposes a familiar pattern in which harm done to a woman becomes punishment placed upon her body.
This is where modern reception has changed Medusa's public meaning. She can now signify survival, rage, refusal, and protection against objectifying sight.
Relationship to sensuality
Medusa belongs to sensuality through the gaze. Sensuality includes seeing, but seeing can touch without consent. Medusa makes vision answerable. Her face asks what looking does, who controls the terms of visibility, and when beauty becomes danger because the viewer cannot bear the subject's power.
What this changes
Medusa changes the question from "Is she beautiful or monstrous?" to "Who needs her to be one or the other?" Her power begins when the gaze is no longer innocent.