PENTECOSTER
Pen`te*cos"ter, n. Etym: [NL., fr. Gr. (Gr. Antiq.)
Defn: An officer in the Spartan army commanding fifty men. Mitford.
PENTECOSTY
Pen`te*cos"ty, n.; pl. Pentecosties. Etym: [Gr. (Gr. Antiq.)
Defn: A troop of fifty soldiers in the Spartan army; — called also pentecostys. Jowett (Thucyd. ).
PENTELIC; PENTELICAN
Pen*tel"ic, Pen*tel"i*can, a.
Defn: Of or pertaining to Mount Pentelicus, near Athens, famous for its fine white marble quarries; obtained from Mount Pentelicus; as, the Pentelic marble of which the Parthenon is built.
PENTENE
Pen"tene, n. Etym: [See Penta-.] (Chem.)
Defn: Same as Amylene.
PENTHOUSE
Pent"house`, n. Etym: [A corruption of pentice.]
Defn: A shed or roof sloping from the main wall or building, as over a door or window; a lean-to. Also figuratively. "The penthouse of his eyes." Sir W. Scott.