Yin

from WordNet (r) 3.0 (2006)

yin
    n 1: the dark negative feminine principle in Chinese dualistic
         cosmology; "the interaction of yin and yang maintains the
         harmony of the universe" [ant: {yang}]

from The Collaborative International Dictionary of English v.0.48

Yin \Yin\, n.
   A Chinese weight of 22/3 pounds.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Yin \Yin\, n. (Chinese philosophy)
   one of the two fundamental principles. See {yin and yang}.
   [PJC]

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