1. Containing within itself the means of propulsion or movement
   - automotive, self-propelled 
2. Moved forward by its own force or momentum
   - self-propelled

See also: dynamic, dynamical, moving

• order Lycopodiales
• order Lyginopteridales
• order Madreporaria
• order Mallophaga
• order Malvales
• order mantophasmatodea
• order Marattiales
• order Marchantiales
• order Marsupialia
• order Mecoptera
• order Moniliales
• order Monotremata
• order Mucorales
• order Musales
• order Myaceae
• order Mycelia Sterilia
• order Mycoplasmatales
• order Mycrosporidia
• order Myricales
• order Myrtales
• order Mysidacea
• order Myxobacterales
• order Myxobacteria
• order Myxobacteriales
• order Myxosporidia