firtree

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English

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gas turbine blade with firtree-type root

Etymology

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fir +‎ tree

Noun

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firtree (plural firtrees)

  1. A fir.
  2. (turbines) The root of a very-high-temperature turbine blade, inserted into a corresponding slot in a disc, resembling in section a simplified image of a fir.

Anagrams

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