Definition of isohel in English:

isohel

Pronunciation /ˈīsəˌhel/ /ˈaɪsəˌhɛl/

noun

Meteorology
  • A line on a map connecting points having the same duration of sunshine.

Origin

Early 20th century from iso-‘equal’ + Greek hēlios ‘sun’.

Pronunciation

isohel

/ˈīsəˌhel/ /ˈaɪsəˌhɛl/