The plural form of the noun 'bacillus' is bacilli.
The singular of bacilli is bacillus.
bacilli
Bacterium. The plural form -a comes from Latin, where a 2nd declension neuter noun's singular is -um and its plural is -a. You can see the same from datum, data;
The plural for stratum is strata.
The plural form of appendix is appendices.
The plural form of ninja can be ninja or ninjas.
Crazy is an adjective and therefore has no plural form in English.
The plural of bacillus is bacilli.
Bacilli is the plural form of bacillus. Bacilli refers to the class of bacteria that includes the orders of Bacillales and Lactobacillales.
The singular form is bacillus (one organism, or one type of organism). The plural is bacilli. Examples: He could clearly see the shape of the bacillus. This bacillus is common in tropical climates. Bacilli were found in his spleen. Various bacilli are endemic to the region.
The closest common word is bacillus (plural bacilli), a form of rod-shaped bacteria.
Bacterium. The plural form -a comes from Latin, where a 2nd declension neuter noun's singular is -um and its plural is -a. You can see the same from datum, data;
Bacilli is plural. The singular is bacillus.
English
The foreign plural form of symposium is symposia, while the English plural form is symposiums.
The plural form of rat is 'rats'.
Islamic. English adjectives do not have a plural form.
The singular form is bacterium; the plural form is bacteria.
The plural for stratum is strata.