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| heart·worm [ hrt wùrm ] (plural heart·worms or heart·worm) |
noun |
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| Definition: |
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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
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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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