12-Letter Words Containing: RAS__

• To live on or in a host organism as a parasite

• a phrase that has become a catchword

• seemingly outside normal sensory channels

• a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

• a green variety of chalcedony valued as a gemstone

• a premature systole resulting in a momentary cardiac arrhythmia

• roundabout and unnecessarily wordy