adjective
Usage: usually capitalized L&S
: of, relating to, or being the warmer part of the Sonoran life zone that adjoins the Tropical zone — compare upper sonoran
adjective
Usage: usually capitalized L&S
: of, relating to, or being the warmer part of the Sonoran life zone that adjoins the Tropical zone — compare upper sonoran
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012