What does "obscenity" mean?

Obscenity: That quality in words or things which presents what is offensive to chasity or purity of mind; obscene or impure lanquage or acts; moral impurity; lewdness; obsceneness; as, the obscenity of a speech, or a picture. Mr.Cowley asserts plainly, that obscenity has no place in wit. Dryden. No pardon vile obscenity should find. Pope.