Search Result for "pass-through": 
Wordnet 3.0

NOUN (1)

1. an opening that resembles a window between two rooms (especially a shelved opening between a kitchen and dining room that is used to pass dishes); 



WordNet (r) 3.0 (2006):

pass-through
    n 1: an opening that resembles a window between two rooms
         (especially a shelved opening between a kitchen and dining
         room that is used to pass dishes)