precision / prescission [prəˈsɪƷən]
precision – adj. & n. – adj. – intended to possess exactness of construction or performance; n. – 1. Philosophy – the mental separation of one fact or idea from another, an abstraction; 2. the action of separating or cutting off; 3. an instance of exactness or accuracy; 4. the accuracy of an information retrieval system
prescission – n. – the act of cutting of, detaching or separating from, ignoring or leaving out of consideration prematurely. It has a more temporal or developmental sense than the first term.