Dictionary
sem•i•ar•id
Pronunciation: (sem"ē-ar'id, sem"ī-), [key]—
adj.(of a region, land, etc.)
characterized by very little annual rainfall, usually from 10 to 20 in. (25 to 50 cm):
the struggle to raise vegetables in semiarid regions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.