K

Smoke- Smoke in various concentrations can cause significant problems for people with respiratory ailments. It becomes a more universal hazard when visibilities are reduced to ¼ mile or less.

(1) Kelvin. (2) Kilo.

Abbreviation for kelvin(s). See thermodynamic temperature. 2. When referring to data storage capacity, 2¹⁰, or 1024 in decimal notation; however this usage of an upper case K is deprecated.