catabatic
- adjective
- /ˌkætəˈbætɪk/
- Specialized
- The catabatic breeze swept down the valley, bringing cooler air to the lower altitudes.
Examples
-
At dusk, the catabatic winds began to blow, indicating a significant temperature drop in the region.
-
Soon the air was chilly, but chill air must still lift over hills, over soaring heights, because of catabatic convection flow.
Fiction book (1995) -
During the night, the catabatic winds caused a drop in temperature as they flowed down the mountain slopes.
Synonyms
A cold wind that moves down a slope, often at night
Compounds
- Specialized
A strong wind that blows when cold, heavy air flows down from high ground like a mountain or plateau
Surface Forms
Morphology
catabatic = catabasis (opaque) = catabasis + ic
Although analyzable historically (cata- 'down' + a base meaning descent), the base word and combining elements are rare and not recognizable to an average B1 learner, so the meaning is not directly derivable.
Etymology
Catabatic comes from Greek parts cata- meaning 'down' and -batic from a root meaning 'to go' or 'descent'. So a catabatic wind is literally air that 'goes down' a slope, often cold air flowing from high ground at night.