9-Letter Words Containing: A,T,E,I,N,S

• 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

• third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy

• indulge in fantasies

• portray in the mind

• a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom

• collect and study plants

• a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium