1.NounThe explicit literary or visual depiction of sexual subject matter; any display of material of an erotic nature. .mw-parser-output .defdate{font-size:smaller}
"Many websites have a complete ban on pornography."
2.NounThe depiction of (non-sexual) subject matter so that it elicits feelings analogous to erotic pleasure; any such depiction.
3.NounThe graphic, detailed, often gratuitous depiction of something.