genius: Meaning and Definition of

gen•ius

1. an exceptional natural capacity of intellect, especially as shown in creative and original work in science, art, music, etc.: the genius of Mozart.
2. a person having such capacity.
3. a person having an extraordinarily high intelligence rating on a psychological test, as an IQ above 140.
4. natural ability or capacity; strong inclination: a special genius for leadership.
5. distinctive character or spirit, as of a nation, period, or language.
6. the guardian spirit of a place, institution, etc.
7. either of two mutually opposed spirits, one good and the other evil, supposed to attend a person throughout life.
8. a person who strongly influences for good or ill the character, conduct, or destiny of a person, place, or thing: Rasputin, the evil genius of Russian politics.
9. genie (defs. 1, 3).