variants:
or trap-door spider
plural trapdoor spiders or trap-door spiders
Definition of trapdoor spider
: any of various often large burrowing mygalomorph spiders (especially family Ctenizidae) that construct a tubular subterranean silk-lined nest topped with a hinged lid
Trapdoor spiders dig burrows using a spiny rake mounted on their jaws, then line the burrow and the opening with silk.— Richard and Joyce Wolkomir Tarantulas, trap-door spiders, and some other species still use their silk mainly for shelter …— Richard Conniff
Illustration of trapdoor spider
trap-door spider
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“Trapdoor spider.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trapdoor%20spider. Accessed 23 Jun. 2021.
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Time Traveler for trapdoor spider
The first known use of trapdoor spider was in 1826
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