逆ぎゃく位いぎゃくいMeanings1nounchromosomal inversionbiologyBiology term for a chromosome segment that is reversed end to end. Used in genetics and cytogenetics.逆ぎゃく位いは染せん色しょく体たいの構こう造ぞう異い常じょうの一ひとつである。Inversion is one type of chromosomal structural abnormality.