drop window
noun
a window with a sash that slides into a space below the sill.
Origin of drop window
First recorded in 1900–05
Words nearby drop window
drop tank,
drop tee,
drop the ball,
drop the handkerchief,
drop valve,
drop window,
drop zone,
drop-dead,
drop-dead date,
drop-dead fee,
drop-down menu
Example sentences from the Web for drop window
A shelf or counter can be fitted inside the drop-window for the display of your wares.
Woodworking for Beginners |Charles Gardner Wheeler