What Does CD Stand For?

CD stands for Coefficient Of Drag

The Coefficient of Drag (CD) is a dimensionless number that quantifies the drag force experienced by an object moving through a fluid, such as air or water. It is defined as the ratio of the drag force to the product of the fluid density, the object's cross-sectional area, and the square of the object's velocity. A lower CD indicates a more aerodynamically or hydrodynamically efficient shape, which is critical in fields such as automotive, aerospace, and marine engineering for optimizing performance and fuel efficiency.

Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym

Other Meanings for CD