12-Letter Words Containing: O,R,C,E,R,Y

• an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)

• a show involving artistic dancing

• the representation of dancing by symbols as music is represented by notes

• a notation used by choreographers

• an antibiotic (trade name Erythrocin or E-Mycin or Ethril or Ilosone or Pediamycin) obtained from the actinomycete Streptomyces erythreus; effective against many Gram-positive bacteria and some Gram-negative

• a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone