A motor complex composed of an extracellular helical protein filament coupled to a rotary motor embedded in the cell envelope. [ http://en.wikipedia.org/wiki/Flagellum#Bacterial GOC:krc GOC:mtg_sensu GOC:jh2 GOC:cilia http://www.ncbi.nlm.nih.gov/pubmed/7787060 ]

Synonyms: flagellin-based flagellum

This is just here as a test because I lose it