lazy jack


: a device that compensates for expansion and contraction (as in a pipe line) consisting of two linked bell cranks pivoted at the vertices of their complementary angles
: an often forked line reaching from the masthead or the topping lift on each side of a fore-and-aft sail to about the middle of the boom to confine the sail when it is lowered
usually used in plural

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Dictionary Entries Near lazy jack

Cite this Entry

“Lazy jack.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

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