a sheet of asbestos or other fireproof material that can be lowered just inside the proscenium arch in case of fire, sealing off the backstage area from the auditorium. Also called fire curtain .
[ 1905-10 ]
SAFETY CURTAIN
Meaning of SAFETY CURTAIN in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012