Search Result for "midstream": 
Wordnet 3.0

NOUN (1)

1. the middle of a stream; 



The Collaborative International Dictionary of English v.0.48:

midstream \midstream\ n.
   the middle of a stream; as, don't change horses in midstream.
   [WordNet 1.5]


WordNet (r) 3.0 (2006):

midstream
    n 1: the middle of a stream