—n. 1. Also called true bug, hemipteran, hemipteron. a hemipterous insect.
2. (loosely) any insect or insectlike invertebrate.
3. Informal.any microorganism, esp. a virus: He was laid up for a week by an intestinal bug. 4. Informal.a defect or imperfection, as in a mechanical device, computer program, or plan; glitch: The test flight discovered the bugs in the new plane. 5. Informal. a. a person who has a great enthusiasm for something; fan or hobbyist: a hi-fi bug. b. a craze or obsession: He's got the sports-car bug. 6. Informal. a. a hidden microphone or other electronic eavesdropping device.
b. any of various small mechanical or electrical gadgets, as one to influence a gambling device, give warning of an intruder, or indicate location.
7. a mark, as an asterisk, that indicates a particular item, level, etc.
8. Horse Racing.the five-pound weight allowance that can be claimed by an apprentice jockey.
9. a telegraph key that automatically transmits a series of dots when moved to one side and one dash when moved to the other.
10. Poker Slang.a joker that can be used only as an ace or as a wild card to fill a straight or a flush.
11. Print.a label printed on certain matter to indicate that it was produced by a union shop.
12. any of various fishing plugs resembling an insect.
13. Chiefly Brit.a bedbug.
14. put a bug in someone's ear, to give someone a subtle suggestion; hint: We put a bug in his ear about a new gymnasium.
—v.t.Informal. 1. to install a secret listening device in (a room, building, etc.) or on (a telephone or other device): The phone had been bugged. 2. to bother; annoy; pester: She's bugging him to get her into show business. 3. bug off,Slang.to leave or depart, esp. rapidly: I can't help you, so bug off. 4. bug out,Slang.to flee in panic; show panic or alarm.
Pronunciation: (bug),[key] —n.Obs. a bogy; hobgoblin.
Pronunciation: (bug; Pol., Russ. bOOk),[key] —n. 1. a river in E central Europe, rising in W Ukraine and forming part of the boundary between Poland and Ukraine, flowing NW to the Vistula River in Poland. 450 mi. (725 km) long.
2. a river in SW Ukraine flowing SE to the Dnieper estuary. ab. 530 mi. (850 km) long.