沈ちん水すい植しょく物ぶつちんすいしょくぶつMeanings1nounsubmerged plant; submerged vegetationTechnical term in botany and ecology for aquatic plants that grow entirely underwater.沈ちん水すい植しょく物ぶつは水すい中ちゅうで光こう合ごう成せいを行おこなう。