window sash

Definitions of window sash
1

n a framework that holds the panes of a window in the window frame

Synonyms:
sash
Types:
casement
a window sash that is hinged (usually on one side)
Type of:
framework
a structure supporting or containing something

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.