sub-zero
[suhb-zeer-oh]
- indicating or recording lower than zero on some scale, especially on the Fahrenheit scale: a week of sub-zero temperatures.
- characterized by or appropriate for sub-zero temperatures: sub-zero climates; sub-zero clothing for the exploration.
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Origin of sub-zero
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sub-zero
Historical Examples
The sub-zero temperature of Meta's voice left no doubt as to what she wanted to do with her.
The Ethical EngineerHenry Maxwell Dempsey
The Wing Commander stiffened and snorted like a Merlin backfiring on a sub-zero morning.
A Yankee Flier with the R.A.F.Rutherford G. Montgomery
We have since found that it can and does heat the entire house even at sub-zero temperatures.
If You're Going to Live in the CountryThomas H. Ormsbee and Richmond Huntley
During the day the heat would boil eggs, and at night the sub-zero cold cracked great scales off the granite boulders.
Loot of the VoidEdwin K. Sloat
They were all bundled in heavy garments, for the temperature of Callisto, never high, frequently drops to sub-zero readings.
The Space RoverEdwin K. Sloat