Definition of pillbug in English:

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Pronunciation: /ˈpilˌbəɡ/
(also pill bug)


A wood louse that has a thick cuticle and is able to roll up into a ball when threatened.
  • Genus Armadillidium, order Isopoda.
Example sentences
  • This small crustacean is similar to the terrestrial pill bug but is aquatic and is found in only one thermal spring near Socorro, New Mexico.
  • The Crustaceamorpha includes lobsters, crabs, shrimp, pill bugs, krill, barnacles, water fleas, brine shrimp (sea monkeys), copepods, ostracods, and more - many, many more.
  • The wood louse is known in Britain by many local names - tiggy-hog, cheeselog, pill bug, chiggy pig, and rolypoly among others.

For editors and proofreaders

Syllabification: pill·bug

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