needle telegraph

noun

: a telegraph signaling by the deflections of a magnetic needle (as when the receiver is a galvanometer with vertical needle)

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Dictionary Entries Near needle telegraph

needletalk

needle telegraph

needle tooth

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“Needle telegraph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/needle%20telegraph. Accessed 2 Dec. 2023.

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