12-Letter Words Containing: O,O,S,C,O,P,E

• the chemical group that gives color to a molecule

• a slender tubular instrument used to examine the bronchial tubes

• The free-swimming larva of some invertebrates that have a circlet of cilia

• a copier that uses photographic methods of making copies

• an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation

• electronic equipment that provides visual images of varying electrical quantities