pill bug


pill bug

noun

Definition of PILL BUG

:  wood louse; especially :  a wood louse capable of curling itself into a ball

Origin of PILL BUG

2pill; from its rolling into a ball when disturbed
First Known Use: 1843

pill bug

noun    (Concise Encyclopedia)

Pill bugs (Armadillidium vulgare)—E.S. Ross

Any species of terrestrial crustacean in the genera Armadillidium and Armadillo (both in the order Isopoda), native to Europe and introduced worldwide. Pill bugs (sometimes called wood lice) resemble tiny armadillos in appearance and behaviour; they have a gray, oval body covered with platelike armour and, when disturbed, roll into a ball. They are about 0.75 in. (19 mm) long. Pill bugs live in dry, sunny places, in dry leaf litter, and on forest edges. See also sow bug.

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