1. Partly or entirely open to the sky
   - hypaethral

See also: unenclosed

• Marchantiaceae
• Marchantiales
• Marche
• marched upon
• marcher
• Marches
• marching
• marching band
• marching music
• marching order
• marching orders
• marchioness
• marchland
• marchpane
• Marciano
• Marcionism
• Marco Polo
• Marco Polo sheep
• Marco Polo's sheep
• Marconi
• Marconi rig
• Marcus Annius Verus
• Marcus Antonius
• Marcus Aurelius
• Marcus Aurelius Antoninus