also: じどうかいしゅん
noun
child prostitution
Legal and social term referring to the act of paying for sexual services from a minor.
児童買春は重大な犯罪です。
Child prostitution is a serious crime.
彼は児童買春の容疑で逮捕された。
He was arrested on suspicion of child prostitution.
児童ポルノ refers to child pornography, while 児童買春 specifically refers to the act of purchasing sexual services from a child.
Compound of 児童 (child) and 買春 (buying sex, from 買う 'to buy' and 春 'spring', a euphemism for sex).