troll plate

English

Noun

troll plate (plural troll plates)

  1. (engineering) A rotary disk with spiral ribs or grooves, by which several pieces, such as the jaws of a chuck, can be brought together or spread radially.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for troll plate in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)

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