1. (a.) Of or pertaining to punishment, to penalties, or to crimes and offenses; pertaining to criminal jurisprudence

2. (a.) Enacting or threatening punishment; as, a penal statue; the penal code.

3. (a.) Incurring punishment; subject to a penalty; as, a penalact of offense.

4. (a.) Inflicted as punishment; used as a means of punishment; as, a penal colony or settlement.

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