13-Letter Words Containing: E,R,S,O,R,S

• 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)

• brain surgery on human patients intended to relieve severe and otherwise intractable mental or behavioral problems

• excessive and profuse perspiration

• excessive and profuse perspiration

• a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air

• the act of exposing film to too much light or for too long a time

• the act of exposing someone excessively to an influencing experience

• a gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun