PORNOGRAPHY
pornography, porno, porn, erotica, smut
(noun) creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire
Source: WordNet® 3.1
Etymology
Noun
pornography (usually uncountable, plural pornographies)
The explicit literary or visual depiction of sexual subject matter; any display of material of an erotic nature. [From mid-19th c.]
(by extension) The depiction of (non-sexual) subject matter so that it elicits feelings analogous to erotic pleasure; any such depiction.
(usually, humorous) The graphic, detailed, often gratuitous depiction of something.
Source: Wiktionary
Por*nog"ra*phy, n. Etym: [Gr. -graphy.]
1. Licentious painting or literature; especially, the painting
anciently employed to decorate the walls of rooms devoted to
bacchanalian orgies.
2. (Med.)
Definition: A treatise on prostitutes, or prostitution.
Source: Webster’s Unabridged Dictionary 1913 Edition