noun
bloodsucker; blood-sucking animal
Refers to animals that feed on blood, such as leeches, mosquitoes, or vampire bats. A straightforward compound noun.
蚊は代表的な吸血動物だ。
Mosquitoes are a typical blood-sucking animal.
Compound of 吸血 (kyūketsu, 'blood-sucking') + 動物 (dōbutsu, 'animal').