Definition of "bedbug" in English

noun

1. A small nocturnal insect pest of humans, of species Cimex lectularius (common bedbug) and Cimex hemipterus (tropical bedbug) that feeds on the blood of humans during sleep.

   • Fiona rapidly discovered that the hotel was infested with bedbugs.

2. Any similar insect of family Cimicidae, that feeds on the blood of humans and certain other warm-blooded animals.