counterflow en · NOUN
Etymology
Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrāder. Old French contre- Anglo-Norman countre-bor. Middle English counter- English counter- English flow English counterflow From counter- + flow.
Meanings
-
(countable, uncountable) A flow in the opposite direction; or the flow of two fluids in opposite directions
We, too, used[…] a counterflow heat exchanger to warm incoming fresh air.
2009 January 5, “Using the Earth and Sun to Provide Home Heating”, in New York Times:
- (Philippines, countable, uncountable) Driving in the opposite direction.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| counterflows | Number=Plur | lexicographic |