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trémie

American  
[trem-ee, trey-mee] / ˈtrɛm i, treɪˈmi /

noun

plural

trémies
  1. a funnellike device lowered into water to deposit concrete.


tremie British  
/ ˈtrɛmɪ /

noun

  1. civil engineering a large metal hopper and pipe used to distribute freshly mixed concrete over an underwater site. The foot of the pipe is kept below the concrete level, while the upper level of the concrete in the pipe is kept above the water level to prevent the water diluting the concrete

"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

Etymology

Origin of trémie

1900–05; < French: hopper < Latin trimodia three-peck measure, equivalent to tri- tri- + mod ( ius ) measure of grain + -ia -ia