プログレッシブ和英中辞典(第4版)の解説
ぜんか【前科】
a criminal record
彼には前科がある
He has a criminal record.
彼は前科３犯だ
He has been convicted three times previously.／He has three previous convictions.
彼には同じような間違いをした前科がある
He has made the same sort of error before.
前科者
an ex-convict; a man with a criminal record；《俗》 an ex-con；《英俗》 an old lag