noun lo·cust \ˈlō-kəst\

: a type of grasshopper that travels in very large groups and that can cause great destruction by eating crops

Full Definition of LOCUST

:  short-horned grasshopper; especially :  a migratory grasshopper often traveling in vast swarms and stripping the areas passed of all vegetation
:  cicada
a :  any of various leguminous trees: as (1) :  carob 1 (2) :  black locust (3) :  honey locust
b :  the wood of a locust tree

Origin of LOCUST

Middle English, from Anglo-French locuste, from Latin locusta
First Known Use: 14th century

Other Insect Terms

drone, entomology, gadfly, pismire, proboscis, vespine
May 22, 2015
nepotism Hear it
favoritism based on kinship
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears