noun
retrotransposon
A type of transposable element that moves within a genome via an RNA intermediate, common in molecular biology and genetics.
レトロトランスポゾンはヒトゲノムの約40%を占めている。
Retrotransposons make up about 40% of the human genome.
Borrowed from English 'retrotransposon', a blend of 'retro-' (reverse) and 'transposon'.