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hearts
heartsease
heartsick
heartsore
heartstrings
heartthrob
heartwarming
heartwood
heartworm
hearty
heat
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heartworm

heart·worm [ hrt wùrm ] (plural heart·worms or heart·worm)


noun 
Definition:
 
1. parasitic worm: a parasitic filarial worm that lives in the heart and associated blood vessels of members of the dog family, and occasionally in cats and seals

2. heart infection in dogs: an infection of the heart in members of the dog family, and occasionally in cats and seals, that is caused by parasitic worms

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