crawler
A child who is able to creep using its hands and knees but is not able to walk.
(sports) A crawl swimmer.
A tractor crawler, a motorized vehicle that uses caterpillar tracks instead of wheels.
(Internet) A software bot that autonomously follows connected paths such as links between web pages.
A mobile stage in the development of stationary hemipteran insects such as scale insects—generally the first instar.
(obsolete) A cab that is driven slowly along while its driver looks out for a fare.
(obsolete) A person who is abused, physically or verbally, and returns to the abuser a supplicant.
(slang) A sycophant.