subfreezing

sub·freez·ing

S0839600 (sŭb-frē′zĭng)adj. Below freezing.

subfreezing

(sʌbˈfriːzɪŋ) adjbelow freezing temperature

sub•freez•ing

(ˈsʌbˈfri zɪŋ)

adj. below the freezing point: subfreezing temperatures. [1945–50]