Noun derived from the Latin «bacillum»: Bud, diminutive of 'bácullum': cane. 1. Bacteria, unicellular, in the form of bastoncito straight or slightly curved micro-organism. It produces endospore; He often made chains and lichen colonies ( as estate ). Includes: ) saprotrophic ( plant affinity in habitats putrefactos ) in soil, water, and other environments where occurs decomposition of organic matter; (b) ) pathogenic 40 species cause diseases ) such as those that cause anthrax, botulism, cholera, Malta fever, cerebrospinal meningitis, plague, tetanus, the typhus, tuberculosis; c ) harmless species of the flora intestinal.2. Insect of the family of the fasmídeos ( by fantasmagoric ) áptero ( wingless ) tetrapod ( ) two four-legged antennas, elongated, easily mimetizable with ( similar to ) dry twigs.