the drag on a body moving through a fluid as a result of the shape of the body. It can be reduced by streamlining
form drag in American English
noun
Physics
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
Word origin
[1930–35]This word is first recorded in the period 1930–35. Other words that entered Englishat around the same time include: cloverleaf, hypercorrection, logical positivism, old school tie, preset