Ple"nist (?), n. [L. plenus full; cf. F. plÈniste.] One who holds that
all space is full of matter.
Plen"i*tude (?), n. [L. plenitudo, fr. plenus full; cf. F. plenitude.]
1. The quality or state of being full or complete; fullness;
completeness; abundance; as, the plenitude of space or power.