12-Letter Words Containing: Z,I,T,H,E,R,N

• To protect a structure against damage by the weather.

• A protective coating, or layer of insulation, as on a house or car.

• 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 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 place text in parentheses.

• To interject.

• an immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organ

• not endowed with authority

• without official authorization