A mobile stage in the development of stationary hemipteran insects such as scale insects—generally the first instar.
A child who is able to creep using its hands and knees but is not able to walk.
A crawl swimmer.
A tractor crawler, a motorized vehicle that uses caterpillar tracks instead of wheels.
A sycophant.
A software bot that autonomously follows connected paths such as links between web pages.
The larva of a moth of the family Geometridae.