cross-staff

noun
\ ˈkrȯs-ˌstaf How to pronounce cross-staff (audio) \

Definition of cross-staff

: an instrument formerly used at sea for taking the altitude of a celestial body

First Known Use of cross-staff

1582, in the meaning defined above

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The first known use of cross-staff was in 1582

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Dictionary Entries Near cross-staff

cross springer

cross-staff

cross-stitch

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Cite this Entry

“Cross-staff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cross-staff. Accessed 25 Sep. 2021.

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More from Merriam-Webster on cross-staff

Britannica.com: Encyclopedia article about cross-staff

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