noun
flotation method; flotation
Technical term used in fields such as mineral processing, wastewater treatment, and archaeology to separate materials based on buoyancy.
浮遊法は鉱物の選別に広く用いられている。
The flotation method is widely used for mineral separation.
考古学では、浮遊法で土壌から種子や炭化物を回収する。
In archaeology, the flotation method is used to recover seeds and charcoal from soil.
Compound of 浮遊 (ふゆう, 'floating') and 法 (ほう, 'method'). The exact historical derivation is uncertain, but the term is a straightforward technical coinage.