subzero

Less than zero, most commonly used to refer to temperature.

Adjective

  1. Less than zero, most commonly used to refer to temperature.
    • More than half of all Americans will experience subzero wind chills in the next week. - 2026 January 24, “January 23, 2026 — Winter storm begins, bringing ice, heavy snow to much of the US”, in CNN, archived from the...

Origin

Etymology tree Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub-der. English sub- English zero English subzero From sub- + zero.

Forms

sub-zero