Definition of "isohyet" []

• A line drawn on a map connecting points that receive equal amounts of rainfall. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Delineated by White's regs, hamadas and wadis vegetation type, the northern border of the ecoregion lies several hundred kilometers (km) north of the 100 mm rainfall isohyet, which is the northern limit of summer grassland pasture composed of the grasses Eragrostis, Aristida, and Stipagrostis spp. with the herbs Tribulus, Heliotropium, and Pulicharia."
• "The reserve has a hot arid continental desert climate and lies just beyond the 100 millimeters (mm) average annual isohyet."
• "However, the poverty of the increasing human population forces people to attempt growing rain fed crops such as millet and sorghum well north of the isohyet limit where these crops will regularly succeed."