shellback

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shell·back

 (shĕl′băk′)
n.
1. A sailor who has crossed the equator.
2. A veteran sailor.

[From the toughness of such a sailor.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

shellback

(ˈʃɛlˌbæk)
n
1. (Nautical Terms) informal a sailor who has crossed the equator. Compare polliwog2
2. (Nautical Terms) an experienced or old sailor
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

shell•back

(ˈʃɛlˌbæk)

n.
1. a veteran sailor.
2. a person who has crossed the equator aboard ship.
[1880–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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