double glazing

Noun

 * 1) A system of insulated windows (and doors) having two parallel layers of glass separated by an air space

Translations

 * Danish:
 * Dutch: dubbele beglazing
 * Finnish: kaksoislasi
 * French:
 * German:
 * Irish: gloiniú dúbailte, déghloiniú
 * Italian: controfinestra
 * Russian: двойно́е остекле́ние