Meaning of SLIP in English
( n. )
The motion of the center of resistance of the float of a paddle wheel, or the blade of an oar, through the water horozontally, or the difference between a vessel's actual speed and the speed which she would have if the propelling instrument acted upon a solid; also, the velocity, relatively to still water, of the backward current of water produced by the propeller.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012