adjective \ˈsēl(d)-ˈbēm\

Definition of SEALED-BEAM

:  being an electric lamp with a prefocused reflector and lens sealed in the lamp vacuum

First Known Use of SEALED-BEAM



Next Word in the Dictionary: sealed book
Previous Word in the Dictionary: sealed bank bill
All Words Near: sealed-beam

Seen & Heard

What made you want to look up sealed-beam? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More