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wall crawler. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
From wall + crawler.
Noun
wall crawler (plural wall crawlers)
- something which adheres to and crawls upon vertical surfaces
1995 September 23, Vincent Kiernan, “Send in the robots”, in New Scientist, volume 147, →ISSN, page 36:The wall crawler will also take ultrasound readings to reveal pits and cracks beneath the surface of the steel walls.
2004, “Remote Testing of Underground High Level Radioactive Waste Storage Tanks”, in Materials Evaluation, volume 62, American Society for Nondestructive Testing, →ISSN, page 917:The wall crawler... is a commercially available crawler, which attaches to the steel tank wall through strong, permanent magnetic wheels.
2009 March 3, Nick Turse, The Complex: How the Military Invades Our Everyday Lives, New York: Metropolitan Books, →ISBN, page 243:This weaponized wall crawler, assumedly capable of creeping into some 2025 apartment window in Baghdad, Beruit, or Kerachi "carrying a combat load," definitely is not meant to be your friendly neighborhood Spiderman.