jiggermast

or jig·ger mast

[ jig-er-mast, -mahst; Nautical jig-er-muh st ]
/ ˈdʒɪg ərˌmæst, -ˌmɑst; Nautical ˈdʒɪg ər məst /
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noun Nautical.

a small mast set well aft in a boat or ship; mizzenmast.
the fourth mast from forward in a ship having five or more masts.

Origin of jiggermast

First recorded in 1825–35; jigger1 + mast1
Also called jigger.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for jiggermast

jiggermast

/ (ˈdʒɪɡəˌmɑːst) /

noun

nautical any small mast on a sailing vessel, esp the mizzenmast of a yawlSometimes shortened to: jigger
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012