Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle. Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle.
The term âfutilityâ is used to refer to the inability of a clinical trial to achieve its objectives. In particular, stopping a clinical trial when the interim results suggest that it is unlikely to achieve statistical significance can save resources that could be used on more promising research.
Definition of futility. plural. futilities. 1 : the quality or state of being futile : uselessness His speech focused on the futility of violence. 2 : a useless act or gesture the futilities of debate for its own sake â W. A. White.