Search Result for "u-shaped": 
Wordnet 3.0

ADJECTIVE (1)

1. shaped in the form of the letter U; 



The Collaborative International Dictionary of English v.0.48:

U-shaped \U"-shaped`\, a.
   Having the form of the letter U; specif. (Phys. Geog.), of
   valleys, resembling a broad U in cross profile.
   [Webster 1913 Suppl.]


WordNet (r) 3.0 (2006):

U-shaped
    adj 1: shaped in the form of the letter U