noun Date: 1951 the act, action, or process of offsetting increased costs by raising prices, an opening in a wall between two rooms through which something (as dishes) may be passed
PASS-THROUGH
Meaning of PASS-THROUGH in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012