the portion of the resisting force encountered by a body moving through a fluid that is due to the irregularity of shape of the body, reducible to a minimum by streamlining.
Origin of form drag
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the drag on a body moving through a fluid as a result of the shape of the body. It can be reduced by streamlining
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