変へん成せいへんせいFreq.FrequencyTop 100,000ConjugationMeanings1noun, noun or participle which takes 'suru', transitive verb, intransitive verbmetamorphosis; transformationRefers to a change in form or nature, often used in scientific or technical contexts. Can be used both transitively and intransitively.昆こん虫ちゅうは幼よう虫ちゅうから成せい虫ちゅうへと変へん成せいする。Insects undergo metamorphosis from larva to adult.