Forestaff
Forestaff Fore"staff`, n. (Naut.) An instrument formerly used at sea for taking the altitudes of heavenly bodies, now superseded by the sextant; -- called also {cross-staff}. --Brande & C. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • forestaff — /fawr staf , stahf , fohr /, n., pl. forestaves, forestaffs. cross staff. [1660 70; FORE + STAFF1] * * * …   Universalium

  • forestaff — ˈ ̷ ̷ˌ ̷ ̷ noun Etymology: fore + staff : cross staff 2 * * * /fawr staf , stahf , fohr /, n., pl. forestaves, forestaffs. cross staff. [1660 70; FORE + STAFF1] …   Useful english dictionary

  • cross-staff — Forestaff Fore staff , n. (Naut.) An instrument formerly used at sea for taking the altitudes of heavenly bodies, now superseded by the sextant; called also {cross staff}. Brande & C. [1913 Webster] …   The Collaborative International Dictionary of English

  • Radiometer — Ra di*om e*ter (r[=a] d[i^]*[o^]m [ e]*t[ e]r), n. [L. radius radius + meter: cf. F. radiom[ e]tre.] 1. (Naut.) A forestaff. [1913 Webster] 2. (Physics) An instrument designed for measuring the mechanical effect of radiant energy. [1913 Webster]… …   The Collaborative International Dictionary of English

  • cross-staff — /kraws staf , stahf , kros /, n., pl. cross staffs, cross staves. Astron. an instrument for measuring the angle of elevation of heavenly bodies, consisting of a calibrated staff with another shorter staff perpendicular to and sliding on it. Also… …   Universalium

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