PRE'CEPT, n. [L. proeceptum, from proecipio, to command; proe, before, and capio, to take.]1. In a general sense, any commandment or order intended as an authoritative rule of action; but applied particularly to commands respecting moral conduct. The ten commandments are so many precepts for the regulation of our moral conduct. No arts are without their precepts.2. In law, a command or mandate in writing.