Black's Law Dictionary (2nd edition)dictionaries

Scienter

LaL Knowingly. The term is used iu pleadiug to signify an allega-tion (or that part of the declaration or in-dictment which contains it) setting out the defendant’s previous knowledge of the cause which led to the injury complained of, or rather his previous knowledge of a state of facts which it was his duty to guard agaiust, and his omission to do which has led to the injury complained of. The iusertiou of such an allegation is called “laying the action (or indictment) with a scienter:’ And the term is frequently used to signify the defendant’s guilty knowledge

Source: Black's Law Dictionary 2nd Ed (1910)