noun
Philosophical term referring to the study of beauty, art, and taste. Used in academic contexts.
彼は大学で感性論を専攻している。
He is majoring in aesthetics at university.
美学 is the more common term for aesthetics, especially in everyday and academic contexts. 感性論 is a rarer, more technical synonym.
Compound of 感性 (sensibility, sensitivity) and 論 (theory, discourse). The exact historical derivation is uncertain; it is a modern academic term.