transvestism; cross-dressing
A formal or clinical term for wearing clothes typically associated with the opposite gender. In everyday conversation, 女装 (じょそう) or 男装 (だんそう) are more common.
Transvestism is sometimes discussed in the field of psychiatry.
彼は服装倒錯の傾向があり、時々女性の服を着る。
He has a tendency toward cross-dressing and sometimes wears women's clothes.