Definition of bacillus in English:
noun (plural bacilli-ˈsilī)
- The isolation of the tuberculosis bacillus in 1882 by Robert Koch, who later became professor of hygiene and director of the Institute for Infectious Diseases in Berlin, was a scientific breakthrough.
- When infectious people cough, sneeze, talk or spit, they propel TB germs, known as bacilli, into the air.
- The man, who is unidentified as yet, does not have anthrax - the bacillus is on his person, but he's not infected, and with proper treatment, he should be fine.
- One is a microscopic rod-shaped bacterium called bacillus anthracis, easy to grow in the lab but fragile and easily killed in the open.
- At far right, Methanobacterium thermoautotrophicum, an elongate bacillus form.
- The victim carried an enormous number of bacilli shaped with the typical ‘short rounded ends.’
- Example sentences
- Shigellosis, also known as acute bacillary dysentery, is characterized by the passage of loose stools mixed with blood and mucus and accompanied by fever, abdominal cramps and tenesmus.
- During 1967-70, bacillary dysentery was first reported in Central American countries.
- Approximately a third of cases of dysentery were classified amoebic, a third as bacillary and the rest remained undifferentiated.
bacterium from mid 19th century:
This modern Latin term is formed from Greek baktērion ‘little staff’; the first bacteria to be discovered were rod-shaped. The word bacillus (late 19th century), a pathogenic bacterium, also meant ‘little rod’ in late Latin. Bacillus is also behind the French word debacle, adopted into English in the early 19th century. It literally means an unbarring and was first used of the breaking of ice or other blockage in a river and its effects, and then transferred to human behaviour.
- British & World English dictionary
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