top dead-centre
top dead-centre
n
(General Engineering) engineering the position of the crank of a reciprocating engine or pump when the piston is at the top of its stroke. Abbreviation: t.d.c.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014