heartworm

詳細解釋：

heart.worm

n.（名詞）
A filarial worm(Dirofilaria immitis) transmitted by mosquitoes and parasitic in the heart and associated blood vessels of dogs and other canids.
犬心蟲：一種由蚊蟲傳播且寄生在狗或其他犬科動物的心臟或相連的血管中的絲蟲（犬惡絲蟲 惡絲蟲屬）
The condition resulting from infestation with the heartworm.
犬心蟲病：由於感染犬心蟲而導致的病狀