'Emission' in the Bible

"'If any man has an emission of semen, then he shall bathe all his flesh in water, and be unclean until the evening.

If a man lies with a woman and there is an emission of semen, they shall both bathe themselves in water, and be unclean until the evening.

This is the law of him who has a discharge, and of him who has an emission of semen, so that he is unclean thereby;