Definition of larva noun from the Oxford Advanced American Dictionary

larva

noun
/ˈlɑrvə/
 
plural larvae
/ˈlɑrvi/
 
 
an insect at the stage when it has just come out of an egg and looks like a short fat worm larval
/ˈlɑrvl/
 
adjective [only before noun]an insect in its larval stage