11-Letter Words Containing: H,E,I,S,T,E,R

• an intellectual who synthesizes or uses synthetic methods

• (music) an electronic instrument (usually played with a keyboard) that generates and modifies sounds electronically and can imitate a variety of other musical instruments

• To protect a structure against damage by the weather.

• To lower the velocity and kinetic energy of fast neutrons in a nuclear reactor by use of a moderator, and thus increase the efficiency of fission

• An experiential learning opportunity, usually offered by a school, similar to an internship, but generally shorter in duration.