Aldis lamp

/ ˈɔːldɪs /

noun

1. a portable lamp used to transmit Morse code

Word History and Origins

Origin of Aldis lamp¹

C20: originally a trademark, after A. C. W. Aldis, its inventor

Example Sentences

The flashes of light from the Liberator were assumed to be a Morse-code message flashed from an Aldis lamp.

Read more on BBC

In an age of Wi-Fi and Bluetooth, flashing lights might seem like going back to sending messages with an Aldis lamp.

Read more on Economist

An Aldis lamp winked down toward the shadow bar.

Read more on Project Gutenberg