1. A line connecting points on the earth's surface having the same mean summer temperature

Derived forms: isotheres

• hairy spurge
• hairy tare
• hairy tongue
• hairy vetch
• hairy willowherb
• hairy wood mint
• hairy-legged vampire bat
• Haiti
• Haitian
• Haitian capital
• Haitian centime
• Haitian Creole
• Haitian monetary unit
• haj
• haji
• hajj
• hajji
• haka
• hake
• Hakea
• Hakea laurina
• Hakea leucoptera
• Hakea lissosperma
• hakeem
• Hakenkreuz