n. someone who presides; a leader, an overseer, a president
the GNU version of the Collaborative International Dictionary of English
n. One who presides.
The Century Dictionary and Cyclopedia
n. One who presides.
Word Usage
"President Bush likes to refer to himself as "The Decider" when, in fact, the Founders chose the word "President" because it comes from the term "presider" --- a much more modest post than the oneof unbridled power Bush has created for himself."