isohel

I1S1O1H4E1L1

noun

A line on a map connecting places that receive equal solar radiation, or equal daily hours of sunshine.

OriginAncient Greek ἥλιος →
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Meanings

nounisohel (plural isohels)

plural isohels

  1. A line on a map connecting places that receive equal solar radiation, or equal daily hours of sunshine.

    Each map shows a zone of increased sunshine between Ghana and Nigeria, destroying the regular pattern of east-west trending isohels across southern Nigeria and Ivory Coast.

    1987, Derek F. Hayward, Julius S. Oguntoyinbo, Climatology of West Africa, page 29

Origin

  1. Ancient Greekἥλιος“sun”
  2. Englishisohel

From iso- + Ancient Greek ἥλιος (hḗlios, “sun”).

More words from Ancient Greek

Full word history & related roots →

Rhymes & wordplay

Anagrams

helios
Cite this entry
APA

isohel. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/isohel

MLA

“isohel.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/isohel. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “isohel,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/isohel.

Source: isohel on Wiktionary, CC BY-SA 4.0.