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Webster 1913 Edition
Preventer
Pre-vent′er
,Noun.
 1. 
One who goes before; one who forestalls or anticipates another. 
[Obs.] 
Bacon.
 2. 
One who prevents or obstructs; a hinderer; that which hinders; 
as, a 
. preventer 
of evils or of disease3. 
(Naut.) 
An auxiliary rope to strengthen a mast. 
Preventer bolts
, or 
Preventer plates 
(Naut.)
, fixtures connected with preventers to reënforce other rigging. 
– Preventer stay
. (Naut.) 
Same as 
 Preventer
, 3.Webster 1828 Edition
Preventer
PREVENT'ER
,Noun.
  1.
  One that hinders; a hinderer; that which hinders; as a preventer of evils or of disease.Definition 2025
preventer
preventer
English
Noun
preventer (plural preventers)
- One who, or that which, prevents.
 - (nautical) An arrangement, made with ropes and blocks, that prevents the boom of a sailing boat from performing a jibe.
 - (nautical) Any of various lines set up to reinforce or relieve ordinary running or standing rigging.
 
Translations
arrangement that prevents the boom from jibing
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