Vernier compass
Vernier Ver"ni*er, n. [So named after the inventor, Pierre Vernier.] A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so graduated that a certain convenient number of its divisions are just equal to a certain number, either one less or one more, of the divisions of the instrument, so that parts of a division are determined by observing what line on the vernier coincides with a line on the instrument. [1913 Webster]

{Vernier calipers}, {Vernier gauge}, a gauge with a graduated bar and a sliding jaw bearing a vernier, used for accurate measurements.

{Vernier compass}, a surveyor's compass with a vernier for the accurate adjustment of the zero point in accordance with magnetic variation.

{Vernier transit}, a surveyor's transit instrument with a vernier compass. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • vernier compass — noun : a surveyor s compass with a vernier by means of which a compensating adjustment may be made for magnetic variation to enable the reading of the correct bearings directly from the compass * * * Survey. a compass on a transit (vernier… …   Useful english dictionary

  • vernier compass — Survey. a compass on a transit (vernier transit) having a vernier for adjusting magnetic bearings to read as true bearings. * * * …   Universalium

  • Vernier — Ver ni*er, n. [So named after the inventor, Pierre Vernier.] A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so graduated… …   The Collaborative International Dictionary of English

  • Vernier calipers — Vernier Ver ni*er, n. [So named after the inventor, Pierre Vernier.] A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so… …   The Collaborative International Dictionary of English

  • Vernier gauge — Vernier Ver ni*er, n. [So named after the inventor, Pierre Vernier.] A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so… …   The Collaborative International Dictionary of English

  • Vernier transit — Vernier Ver ni*er, n. [So named after the inventor, Pierre Vernier.] A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so… …   The Collaborative International Dictionary of English

  • compass — Synonyms and related words: Gyrosin compass, Johansson block, RDF, T square, accept, accomplish, achieve, acquire, aesthetic distance, alentours, ambience, ambit, amount, annex, attain, beleaguer, beset, besiege, blockade, border line,… …   Moby Thesaurus

  • Vernier Scale —    In 1631 French mathematician Pierre Vernier (1580 1637) published a mathematical treatise showing that a small, movable auxiliary scale could be attached to a larger, graduated scale to obtain finer adjustments. From that beginning developed… …   Dictionary of eponyms

  • Beam compass — A beam compass is a compass with a beam and sliding sockets or cursors for drawing and dividing circles larger than those made by a regular pair of compasses.[1] The instrument can be as a whole, or made on the spot with individual sockets… …   Wikipedia

  • Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …   Wikipedia

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