a meeting for all members attending a conference, either at the beginning to discuss general issues or at the end to announce progress
The keynote address was part of the plenary session.
[plench] /plɛntʃ/ noun 1. a tool combining pliers and wrench: used especially by astronauts.
[pluh-nip-uh-tuh nt] /pləˈnɪp ə tənt/ adjective 1. invested with or possessing full power. /pləˈnɪpətənt/ adjective 1. a less common word for plenipotentiary
[plen-uh-puh-ten-shee-er-ee, -shuh-ree] /ˌplɛn ə pəˈtɛn ʃiˌɛr i, -ʃə ri/ noun, plural plenipotentiaries. 1. a person, especially a diplomatic agent, invested with full power or authority to transact business on behalf of another. adjective 2. invested with full power or authority, as a diplomatic agent. 3. conferring or bestowing full power, as a commission. 4. absolute […]
[plen-ish] /ˈplɛn ɪʃ/ verb (used with object), Chiefly Scot. 1. to fill up; stock; furnish. /ˈplɛnɪʃ/ verb 1. (transitive) (Scot) to fill, stock, or resupply