(idiomatic) In a ruthless and unfeeling manner, particularly as applied to first-degree murder committed without provocation and with malice aforethought.

(pathology) A small bump (namely a vesicle) on the lips resulting from infection by herpes simplex viruses (mostly HHV1 but also HHV2).

(pathology) A very common, mild viral infection of the nose and throat, whose symptoms include sneezing, sniffling, a running or blocked nose, a sore throat, coughing and a headache.

plural of cold sore

(of a vacuum tube or fluorescent lamp) not heated by a filament

As cold as ice; very cold. / Without emotion; distant.

Cooked, sliced meat served cold, as in a sandwich or a tray of finger food.

The tap (of a pair) that produces cold water (the other being the hot tap)

(idiomatic) extremely and unpleasantly cold

(idiomatic) extreme and unpleasant cold