bacillus
Concise Oxford English Dictionary © 2008 Oxford University Press:
bacillus /bəˈsɪləs/
▶noun (pl. bacilli /-lʌɪ, -liː/) a rod-shaped bacterium.
– derivatives
bacillary adjective.
bacillary adjective.
– origin C19: from late L. (genus name), dimin. of L. baculus ‘stick’.
'bacillus' also found in these Oxford entries:

