from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A line drawn on a map connecting points that receive equal amounts of sunlight.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A line of equal or constant solar radiation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an isogram connecting points receiving equal amounts of sunshine


iso- + Greek hēlios, sun; see sāwel- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
iso- and Ancient Greek ἥλιος (helios, "sun"). (Wiktionary)


Sorry, no example sentences found.


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