exotic

Etymology

Borrowed from Middle French exotique, from Latin exōticus, from Ancient Greek ἐξωτικός (exōtikós, “foreign”, literally “from the outside”), from ἐξω- (exō-, “outside”), from ἐξ (ex, “out of”).

adj

1. Foreign, especially in an exciting way.
   1. Non-native to the ecosystem.
   2. extraterrestial, alien
      exotic materials
2. (finance) Being or relating to an option with features that make it more complex than commonly traded options.
3. (gambling) Being or relating to various wagers, such as the trifecta, that involve betting on the finishing positions of multiple competitors across one or more races.

noun

1. (biology) An organism that is exotic to an environment.
   There were a few exotics among them — some South American boys, sons of Argentine beef barons, one or two Russians, and even a Siamese prince, or someone who was described as a prince. c. 1948, George Orwell, Such, Such Were the Joys
2. An exotic dancer; a stripteaser.
3. (physics) Any exotic particle.
   Glueballs, theoretical particles composed only of gluons, are exotics.