Adjective
subzero (not comparable)
Less than zero, most commonly used to refer to temperature.
My level of intervention in the press, trying to control stories, is zero. Subzero. Benjamin Netanyahu
Crews were working through single-digit temperatures with subzero wind chills Saturday to get more than a dozen hockey rinks ready. Source: Internet
Downtown areas straddle the border between USDA Hardiness zones 7B and 8A, citation and temperatures seldom lower to convert, with the most recent subzero (°F) reading occurring on January 28, 2000, when the temperature reached convert. Source: Internet
HEM Nano concrete hardens in low and subzero temperature conditions and possesses an increased volume of gel, which reduces capillarity in solid and porous materials. Source: Internet
The earliest subzero temperature on record in Fargo-Moorhead was on October 26, 1919. Source: Internet
“Operationally prepared” includes having an ultra-low subzero freezer on-site that can store vaccines in the range of negative 60-80 degrees Celsius. Source: Internet