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Dictionary

heart•worm

Pronunciation: (härt'wûrm"), [key]
—n.
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.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

heartwood

hearty

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