any of various small terrestrial isopods, especially of the genera Armadillidium and Oniscus, which can roll themselves up into a spherical shape.
Insect Armies! Terrifying Bug Groups ExplainedGrab your butterfly nets, and let's discover some bugged-out group names.
What Is The Difference Between A Bug And An Insect?We tend to use the word bug loosely for any very small creature with legs. However, a true bug is defined as belonging to the order Hemiptera. These creatures characteristically have tough forewings and lack teeth, such as beetles. True bugs have a stylet (a mouth shaped like a straw) that they use to suck juices from plants. Insects belong to the class Insecta and they are characterized by three-part bodies, usually two pairs of wings, and …
Origin of pill bug
An Americanism dating back to 1835–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pill bug
It looks like some sort of pill-bug half an inch long, doesn't it?The Animal World, A Book of Natural History|Theodore Wood
British Dictionary definitions for pill bug
any of various woodlice of the genera Armadillidium and Oniscus, capable of rolling up into a ball when disturbed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012