Is “Locust” a Scrabble word?

1.Any of the grasshoppers, often polyphenic and usually swarming, in the family Acrididae that are very destructive to crops and other vegetation, (especially) the migratory locust (Locusta migratoria).

2.A fruit or pod of the carob tree.

3.Any of various often leguminous trees and shrubs, especially of the genera Robinia and Gleditsia; the locust tree.

1.To come in a swarm.