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Definitions of Crawler:

A tractor that uses tracks in place of wheels. Crawlers exhibit superior floatation and traction compared to wheel tractors since their weight is spread over significantly more surface area. They are more maintenance intensive and costly. Crawlers are critical for operations requiring floatation such as areas where soil compaction is a problem. They are also critical to operations where serious traction is required such as using a bulldozer blade.
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The component of a search engine that gathers listings by automatically "crawling" the Web - A search engine's "crawler" (also called a "spider" or "robot"), follows links to web pages. It makes copies of the web pages found and stores these in the search engine's index.
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A component of a search engine that roams the Web, storing the URLs and indexing the keywords and text of each page encountered. Also referred to as a robot or spider.
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bot that visits publicly accessible websites following all links it comes across collecting data for search engine ‘indexes’. A spider discovers new sites and updates information from sites previously visited. A spider can also be used to check links within a website.
members.optusnet.com.au/~webindexing/Webbook2Ed/glossary.htm
The active first instar of a scale insect.
ucipm.ucdavis.edu/PMG/glossary.html
A crawler searches the web for new links, content, and changes for the use of keeping Search Engine Results up to date. Crawlers are also known as bot or spiders.
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Is software that scans the Web and locates pages to add to the index of a search engine. A crawler is in the "robot" software classification
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nowadays, synonymous with robot.
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the motile first-instar nymph of a scale insect.
ipm.ncsu.edu/AG189/html/GLOSSARY.HTML
Automated software that retrieves web pages and follows hyperlinks contained in them. Search engines send out crawlers periodically throughout the web, and generate indexes.
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A software program that retrieves documents from data sources and gathers information that can be used to create search indexes.
publib.boulder.ibm.com/infocenter/db2help/topic/com.ibm.db2.ii.of.doc/common/iiysgloss.htm
A type of aA HREF="#spider">Spider that will download multiple pages from the same web site. Crawling refers to the fact, that the spider will look for links in the pages it downloads and then walk or crawl down through a web site.
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a type of scrap handler that maneuvers on an endless chain-track drive system. A crawler’s tracks can have hard rubber pads attached to guard against damage to pavement.
www.recyclingtoday.com/articles/article.asp
An automated robot program that follows links to visit web sites on behalf of search engines or directories. Crawlers then process and index the code and content of a web page to be stored in the search engine's database. For example, Googlebot is the crawler that travels the web finding and indexing pages for the Google search engine.
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Also known as a spider or robot. A program that goes through your site collating information for its creator (a search engine).
www.whitespace-strategy.co.uk/knowledge_phrasebook.php
A strike that is achieved without hitting the headpin. On the right, the ball hits the 3-6 in a full rack, and the pin action knocks the 4-pin into the 2-pin and the 2-pin into the headpin.
www.bowlingdialogue.com/glossary-c.html
sycophant: a person who tries to please someone in order to gain a personal advantage
a person who crawls or creeps along the ground
earthworm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers
wordnet.princeton.edu/perl/webwn
A crawler is a tractor with tracks instead of wheels. The name probably comes from their slow speed.
en.wikipedia.org/wiki/Crawler

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