Search Result for "acid_rain":
Wordnet 3.0

NOUN (1)

1. rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water;
[syn: acid rain, acid precipitation]


WordNet (r) 3.0 (2006):

acid rain n 1: rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water [syn: acid rain, acid precipitation]