moderator
Pronunciation:
/ˈmɒdəˌɹeɪtə(ɹ)/noun
Definitions
Someone who moderates
The person who presides over a synod of a Presbyterian Church
A substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission
A device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.