nature. 1. A fundamental quality that distinguishes one thing from another; the essence of something. 2. A wild condition, untouched by civilization. 3. A disposition or personality of someone or something. 4. Something pure or true as distinguished from something artificial or contrived. 5. The basic instincts or impulses of someone or something. 6. The elements of the universe, such as mountains, plants, planets, and stars.

[Blacks Law 8th]