1893 5 May 624/1 The phosphorescent glow of the novel high-frequency, high-voltage, high-vacuum lamps.
1936 A. Lowy & B. Harrow (ed. 4) xxvi. 284 Dibutyl phthalate..is used in high-vacuum distillations.
2009 (Nexis) 2 June a3 Understanding how the weightless, high-vacuum environment..affects the human body is increasingly important.