Noun
(veterinary medicine) A parasitic organism that afflicts dogs, the roundworm Dirofilaria immitis.
(veterinary medicine) (uncountable) The condition caused by this organism.
Source: en.wiktionary.orgAll dogs are at risk for heartworm disease, no matter where they live—heartworms don't discriminate based on geography. Source: Internet
During this time, the dog will be given monthly heartworm preventive medication to rid the body of the immature worms in the system. Source: Internet
I am Dixie, a 9-year-old girl who is spayed, vaccinated and on heartworm prevention. Source: Internet
In an unprotected dog, heartworm larvae mature into adults and ultimately migrate to the arteries of the lungs. Source: Internet
I tested heartworm positive and I have Lyme disease and I’m currently undergoing treatment. Source: Internet
It is not the type that is known for infecting animals, such as the heartworm. Source: Internet