mother ship


noun

a vessel or craft that services others operating far from a home port or center.

Origin of mother ship

First recorded in 1885–90
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British Dictionary definitions for mothership

mother ship

noun

a ship providing facilities and supplies for a number of small vessels
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