Sentence Examples with the word purposeful

The purposeful character of all these movements or changes of position indicates that they are of nervous origin.

Observer that such perceptions exist, and that they are followed by certain purposeful changes in the plant, sometimes mechanical, sometimes chemical, the object being evidently to secure some advantage for the plant, to ward off some danger, or to extricate it from some difficulty.

Deidre sensed his anger, though his movements were as controlled and purposeful as usual.