Fully attended; for everyone's attendance. / (theology or law) Complete; full; entire; absolute.

plenary session / (pedagogy) Part of a lesson, usually at or towards the end, designed to review or evaluate the learning that has taken place.

plural of plenary

Quality or state of being plenary.

The speaker at a plenary talk, especially a notable person who is present by invitation.

A talk during a conference or similar meeting that is scheduled at a time when everyone can attend, e.g. at a time when nothing else is scheduled.

The entire or full court, sitting en banc.

(Roman Catholicism) A kind of indulgence granted on special occasions.

A session of a conference or other meeting at which all members are expected to be present.

plural of plenary session