Definition of subhumid in US English:

subhumid

adjective

  • Somewhat humid, slightly moist; (in later use) specifically designating a warm moist climate which supports grassland or prairie vegetation; having or characteristic of such a climate.

Origin

Late 18th century; earliest use found in Walter Nicol (d. 1811). From sub- + humid.

Pronunciation

subhumid

/ˌsʌbˈhjuːmɪd/