heartworm

[ hahrt-wurm ]

noun

1. a parasitic nematode, Dirofilaria immitis, transmitted by mosquito and invading the heart and pulmonary arteries of dogs, wolves, and foxes throughout its range in tropical, subtropical and, more recently, temperate regions around the world.
2. the disease caused by infection with heartworm.

heartworm

/ ˈhɑːtˌwɜːm /

noun

1. a parasitic nematode worm, Dirofilaria immitis, that lives in the heart and bloodstream of vertebrates

Word History and Origins

Origin of heartworm¹

First recorded in 1885–90; heart + worm

Example Sentences

County officials discovered the Asian tiger mosquito in El Monte, which raised alarm bells because of its ability to carry serious illnesses, including dengue and yellow fever in humans, and heartworm in dogs, according to the UC Riverside Center for Invasive Species Research.

From Los Angeles Times

These guys can carry heartworm, which can be devastating to a dog that hasn’t been treated with preventive medicine.

From Los Angeles Times

County officials discovered the Asian tiger mosquito in El Monte, which raised alarm bells because of its ability to carry serious illnesses, including dengue and yellow fever in humans, and heartworm in dogs, according to the UC Riverside Center for Invasive Species Research.

From Los Angeles Times

These guys can carry heartworm, which can be devastating to a dog that hasn’t been treated with preventive medicine.

From Los Angeles Times

Beyond the itchiness, they spread serious diseases and can even transmit heartworm to cats and dogs.

From The Verge