any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.; "he sprayed the garden to get rid of pests"; "many pests have developed resistance to the common pesticides"
any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
screw thread on a gear with the teeth of a worm wheel or rack
a software program capable of reproducing itself that can spread from one computer to the next over a network; "worms take advantage of automatic file sending and receiving features found on many computers"
a person who has a nasty or unethical character undeserving of respect
any of various small butterflies of the family Lycaenidae having coppery wings
a reddish-brown color resembling the color of polished copper
a copper penny
a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
any of various small insectivorous birds of the northern hemisphere that climb up a tree trunk supporting themselves on stiff tail feathers and their feet
any plant (as ivy or periwinkle) that grows by creeping
any of various climbing plants of the genus Vicia having pinnately compound leaves that terminate in tendrils and small variously colored flowers; includes valuable forage and soil-building plants