9 Grammatical Pitfalls


[trahy-brak, trib-rak] /ˈtraɪ bræk, ˈtrɪb ræk/
Prosody. a foot of three short syllables.
Origin of tribrach
< Latin tribrachys < Greek tríbrachys, equivalent to tri- tri- + brachýs short; see brachy-
Related forms
tribrachic, adjective
tribrachial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for tribrach
  • Plummets, which cannot be rotated about a point, are checked through the use of a test ring mounted on a second tribrach.
  • If a total station is to be used, remove the instrument from the tribrach.
  • Never leave an instrument or its tribrach on the tripod without securing either to the tripod.
  • Center and level the instrument over the mark using only the tribrach.
  • Once a tribrach is set over a point, it must stay mounted on the tripod over that point for all uses.
  • Level instrument using tribrach foot screws following equipment leveling procedures.
  • All backsights and foresights will be to a prism secured to a tribrach and tripod.
  • tribrach circular level bubbles and optical plummets can be out of true or height measurements can be made incorrectly.
British Dictionary definitions for tribrach


/ˈtraɪbræk; ˈtrɪb-/
(prosody) a metrical foot of three short syllables (◡ ◡ ◡)
Derived Forms
tribrachic, tribrachial, adjective
Word Origin
C16: from Latin tribrachys, from Greek tribrakhus, from tri- + brakhus short


(archaeol) a three-armed object, esp a flint implement
Word Origin
C19: from tri- + Greek brakhiōn arm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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