ba·cil·lus
noun/bəˈsɪləs/
/bəˈsɪləs/
(plural bacilli
/bəˈsɪlaɪ/
/bəˈsɪlaɪ/
)- a type of bacteria. There are several types of bacillus, some of which cause disease.
杆菌（有些可致病） Oxford Collocations DictionaryBacillus is used after these nouns:- leprosy
Word Originlate 19th cent.: from late Latin, diminutive of Latin baculus ‘stick’.