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Sub-zero
adj
Definitions
Adjective
- 1 below 0°C; freezing cold not-comparable
"Several days of sub-zero temperatures caused icicles up to 1.5 metres long to form in tunnels across Greater Manchester, Lancashire and Cumbria."
- 2 below 0°F (−18°C) US, not-comparable
Etymology
From sub- + zero.
See also for "sub-zero"
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