I. ˈgrēniŋ, -nēŋ noun
( -s )
Etymology: green (I) + -ing
1. : any of several green-skinned apples
2. : a green appearance of oysters caused by their feeding on minute green marine algae — compare greengill
3. : sunburn 2a
II. noun
1. : a restoration of freshness or vigor : revitalization : rejuvenation
2. : a shift (as of attitudes or policies) toward increased concern with protection of the natural environment