Noun

Unwelcome conduct of a sexual nature that has the effect of creating a hostile or stressful living, learning, or working environment, or whenever toleration of such conduct or rejection of it is the basis for an academic or employment decision affecting an individual. Conduct is considered “unwelcome” if the person did not request or invite it and considered the conduct to be undesirable or offensive.

Source

BU’s Non-Title IX Sexual Misconduct (first paragraph)