temperate zone
From Longman Dictionary of Contemporary Englishtemperate zoneˈtemperate ˌzone noun [countable] one of the two parts of the Earth that are north and south of the tropicsExamples from the Corpustemperate zone• The length of the day changes in the temperate zone with the change of seasons.• Its distribution ranges from the tropics to the warmer areas of the temperate zone of both hemispheres.• Most aquarium plants come from tropical and subtropical areas, with a few from the warmer parts of the temperate zone.