locust

locust is a Noun

Definition:

[1] Any one of numerous species of long-winged, migratory, orthopterous insects, of the family Acrididæ, allied to the grasshoppers; esp., (Edipoda, or Pachytylus, migratoria, and Acridium perigrinum, of Southern Europe, Asia, and Africa. In the United States the related species with similar habits are usually called grasshoppers. See Grasshopper.

[2] The locust tree. See Locust Tree (definition, note, and phrases). Locust bean (Bot.), a commercial name for the sweet pod of the carob tree.