noun which may take the genitive case particle 'no', noun
oleophilic; lipophilic
Technical term used in chemistry and materials science to describe substances that have an affinity for oils or fats.
親油性の物質は油とよく混ざる。
Oleophilic substances mix well with oil.
この膜は親油性が高いため、油分を選択的に透過する。
Because this membrane is highly lipophilic, it selectively allows oils to pass through.
疎油性 is the opposite of 親油性, meaning oil-repellent.
Compound of 親 (shin, 'affinity') + 油 (yu, 'oil') + 性 (sei, 'property'). The exact historical derivation is uncertain, but the term follows a common pattern in scientific terminology.