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Aldis

noun
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Al·​dis | \ ˈȯl-dəs \

Definition of Aldis

: a hand-carried signal lamp used to flash messages especially from ships and aircraft

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First Known Use of Aldis

1944, in the meaning defined above

History and Etymology for Aldis

after Arthur C. W. Aldis †1953 British engineer and inventor

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Cite this Entry

“Aldis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Aldis. Accessed 14 Jun. 2021.

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