Ple″na‐ry (?), a. [LL. plenarius, fr. L. plenus full. See Plenty.] Full; entire; complete; absolute; as, a plenary license; plenary authority.
A treatise on a subject should be plenary or full. I. Watts.
Plenary indulgence(R. C. Ch.), an entire remission of temporal punishment due to, or canonical penance for, all sins. — Plenary inspiration. (Theol.) See under Inspiration.