12-Letter Words Containing: I,R,C,O,N,S

• operating in unison

• 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)

• make synchronous and adjust in time or manner

• happen at the same time

• make (motion picture sound) exactly simultaneous with the action

• arrange or represent events so that they co-occur

• operate simultaneously

• cause to indicate the same time or rate

• An endopeptidase enzyme that cleaves peptides at the carboxyl side of tyrosine, tryptophan, and phenylalanine amino acids.

• remove carbon from (an engine)

• an antimalarial drug used to treat malaria and amebic dysentery and systemic lupus erythematosus

• propels bright light high in the sky, or used to propel a lifesaving line or harpoon

• sends a firework display high into the sky

• shoot up abruptly, like a rocket