1. An imaginary line connecting points on the Earth's surface where the magnetic declination is the same
   - isogonic line, isogone

Derived forms: isogonal lines

Type of: line

• metatarsal arch
• metatarsal artery
• metatarsal vein
• metatarsus
• Metatheria
• metatherian
• metathesis
• metathetical
• Metaurus River
• Metazoa
• metazoan
• Metchnikoff
• Metchnikov
• mete
• mete out
• meted out
• metempsychosis
• metencephalon
• meteor
• meteor shower
• meteor stream
• meteor swarm
• meteoric
• meteorite
• meteoritic