larva
//ˈlɑːr.və//
Noun
larvaSingular
larvaePlural
1
The immature, wingless, and often worm-like form of an insect or other animal that undergoes metamorphosis before reaching its adult stage.
The caterpillar is the larva of a butterfly.
2
The early developmental stage of any organism that differs significantly in form and structure from the adult.
The larva of a frog is called a tadpole.