12-Letter Words Containing: E,R,S,O,I,R

• 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)

• The soil region subject to the influence of plant roots and their associated microorganisms

• To externalize.

• To expose (an internal organ) for observation or surgery.

• a person who edits a text by removing obscene or offensive words or passages

• express as a formula

• someone who makes something attractive to the general public

• forming an image by the action of light on a specially coated charged plate; the latent image is developed with powders that adhere only to electrically charged areas