lift-to-drag ratio

lift-to-drag ratio (plural lift-to-drag ratios)

1. (aviation) The instantaneous ratio of lift to drag of an aerodynamic article such as an a wing, entire aircraft or bird.
2. The maximum ratio of lift to drag of an aerodynamic article such as an a wing, entire aircraft or bird can achieve.

• glide ratio

•   lift-to-drag ratio on Wikipedia.Wikipedia
• “lift-to-drag ratio”, in OneLook Dictionary Search.