9-Letter Words Containing: E,I,N,Q,S,U

• approximate (a signal varying continuously in amplitude) by one whose amplitude is restricted to a prescribed set of discrete values

• apply quantum theory to; restrict the number of possible values of (a quantity) or states of (a physical entity or system) so that certain variables can assume only certain discrete magnitudes that are integral multiples of a common factor

• either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length

• (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic

• skillful performance or ability without difficulty

• intelligence as revealed by an ability to give correct responses without delay

• a rate that is rapid

• having eyes half closed in order to see better

• having or making a high-pitched sound such as that made by a mouse or a rusty hinge

• a small arch built across the interior angle of two walls (usually to support a spire)

• crouch down

• draw back, as with fear or pain

• cross one's eyes as if in strabismus

• a tart spicy quality

• the quality of being agreeably stimulating or mentally exciting