D defs.my
Entry 2 senses Webster, 1913

Oasis

/(ō"ȧ*sĭs [or] ō̇*ā"sĭs; 277)/ · O·as·is · IPA /oʊˈeɪsɪs/
01 n. A fertile or green spot in a waste or desert, esp. in a sandy desert, where the water table approaches the surface.
pl. Oases ((-sēz))
  1. 1.
    A fertile or green spot in a waste or desert, esp. in a sandy desert, where the water table approaches the surface.
  2. 2.
    Any refuge from a prevailing stressful, unpleasant, or annoying situation.(fig.)
    “My one oasis in the dust and drouth Of city life.” Tennyson.
Syn. haven.