Convener

1. n. One who calls an assembly together or convenes a meeting; hence, the chairman of a committee or other organized body.
2. n. One who convenes or meets with others.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.