Crawler (noun)

Something or someone that moves slowly or creeps along.

Origin:

The word "crawler" originated in the late 16th century, it is derived from the verb "to crawl" which means to move slowly on hands and knees or on the belly. it is used to refer to something or someone that moves slowly or creeps along.

Examples:

1. The baby began to crawl across the floor.
2. The spider was a slow crawler.
3. The crawler moved along the ground, leaving a trail behind.
4. The search engine uses a web crawler to index the webpages.
5. The crawler is a machine used for grading and leveling the land.