noun, noun which may take the genitive case particle 'no'
Refers to growing plants without soil, using nutrient-rich water. Often used in compounds like 水耕栽培.
I'm growing lettuce using hydroponics.
水耕は土を使わないので、室内でも野菜が作れる。
Since hydroponics doesn't use soil, you can grow vegetables indoors.
hydroponics
hydroponics; soilless culture
hydroponic farm; hydroponic plantation
Compound of 水 (water) and 耕 (cultivate, till).