メタ燐りん酸さんMeanings1nounmetaphosphoric acidTechnical term in chemistry; refers to a polymeric form of phosphoric acid.メタ燐りん酸さんはリン酸さんの脱だっ水すい縮しゅく合ごうによって生せい成せいされる。Metaphosphoric acid is produced by dehydration-condensation of phosphoric acid.