1. Athletic activity involving vaulting, jumping, somersaults and other acrobatic movements to negotiate obstacles; usually performed in an urban area using street architecture, jumping between buildings, etc.

Encyclopedia: Free running

• suborder Gorgonacea
• suborder Gorgoniacea
• suborder Heteroptera
• suborder Heterostraci
• suborder Homoptera
• suborder Hyperoartia
• suborder Hyperotreta
• suborder Hystricomorpha
• suborder Lacertilia
• suborder Lari
• suborder Lemuroidea
• suborder Limicolae
• suborder Lipotyphla
• suborder Maniraptora
• suborder Manteodea
• suborder Marginocephalia
• suborder Megachiroptera
• suborder Megaloptera
• suborder Menotyphla
• suborder Menurae
• suborder Microchiroptera
• suborder Mugiloidea
• suborder Myomorpha
• suborder Mysticeti
• suborder Myxiniformes