n. a small wingless bloodsucking insect with a laterally compressed body and long legs adapted for jumping. Adult fleas are temporary parasites on birds and mammals and those species that attack humans (Pulex, Xenopsylla, and Nosopsyllus) may be important in the transmission of various diseases. Their bites are not only a nuisance but may become a focus of infection. Appropriate insecticide powders are used to destroy fleas in the home.
Subjects: Medicine and Health.