燐りん灰かい岩がんじ字FuriganaMeanings1nounphosphate rock; phosphoritegeology›Geological term for a sedimentary rock rich in phosphate minerals, used mainly in fertilizer production.燐りん灰かい岩がんはリン酸さん肥ひ料りょうの原げん料りょうとして重じゅう要ようである。Phosphate rock is important as a raw material for phosphate fertilizers.
