mor·bif·ic /mɔrˈbɪfɪk/ 形容詞
致病的
Mor·bif·ic Mor·bif·ic·al a. Causing disease; generating a sickly state; as, a morbific matter.
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morbific
adj : able to cause disease; "infective agents"; "pathogenic
bacteria" [syn: infective, pathogenic]