14-Letter Words Containing: E,E,E,F,R,R,S

• the size of something as given by the distance around it

• the boundary line encompassing an area or object

• the length of the closed curve of a circle

• splitting a ray into two parallel rays polarized perpendicularly

• the physical property of a medium as determined by its index of refraction

• a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission

• information that makes more forcible or convincing

• (psychology) a stimulus that strengthens or weakens the behavior that produced it

• a device designed to provide additional strength

• an act performed to strengthen approved behavior

• measuring instrument for measuring the refractive index of a substance

• a meter that measures the reflectance of a surface

• A ferroelectric material

• concrete with metal and/or mesh added to provide extra support against stresses