Preventer

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    One who, or that which, prevents.
  2. 2
    An arrangement, made with ropes and blocks, that prevents the boom of a sailing boat from performing a jibe.
  3. 3
    Any of various lines set up to reinforce or relieve ordinary running or standing rigging.

Etymology

From prevent + -er.

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