A guiding concept in matters of artistic beauty and taste; artistic sensibility: "a generous Chronilogical Age Of Aquarius visual having said that that everything ended up being art” ( William Wilson).
An underlying principle, a couple of axioms, or a view often manifested by outward appearances or form of behavior: "What troubled him was the squalor of [the colonel's] aesthetic” ( Lewis H. Lapham).
The study of art or beauty.
whatever interests the senses.
(viewpoint) a philosophical concept about what is breathtaking