14-Letter Words Starting: SER

• control system that converts a small mechanical motion into one requiring much greater power; may include a negative feedback system

• the quality of being able to provide good service

• publication in serial form

• any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit

• edible purple or red berries

• The development of specific antibodies in the blood serum as a result of infection or immunization