Part 170

Pen"te*cost (?), n. [L. pentecoste, Gr. &?; (sc. &?;) the fiftieth day, Pentecost, fr. &?; fiftieth, fr. &?; fifty, fr. &?; five. See Five, and cf. Pingster.] 1. A solemn festival of the Jews; -- so called because celebrated on the fiftieth day (seven weeks) after the second day of the Passover (which fell on the sixteenth of the Jewish month Nisan); -- hence called, also, the Feast of Weeks. At this festival an offering of the first fruits of the harvest was made. By the Jews it was generally regarded as commemorative of the gift of the law on the fiftieth day after the departure from Egypt.

2. A festival of the Roman Catholic and other churches in commemoration of the descent of the Holy Spirit on the apostles; which occurred on the day of Pentecost; -- called also Whitsunday. Shak.

Pen`te*cos"tal (?), a. Of or pertaining to Pentecost or to Whitsuntide.

Pen`te*cos"tals (?), n. pl. Offerings formerly made to the parish priest, or to the mother church, at Pentecost. Shipley.

Pen`te*cos"ter (?), n. [NL., fr. Gr. &?;, fr. &?; fifty.] (Gr. Antiq.) An officer in the Spartan army commanding fifty men. Mitford.

Pen`te*cos"ty (?), n.; pl. Pentecosties (#). [Gr. &?;, fr. &?; the fiftieth, &?; fifty.] (Gr. Antiq.) A troop of fifty soldiers in the Spartan army; -- called also pentecostys. Jowett (Thucyd. ).

{ Pen*tel"ic (?), Pen*tel"i*can (?), } a. 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.

Pen"tene (?), n. [See Penta-.] (Chem.) Same as Amylene.

Pent"house` (?), n. [A corruption of pentice.] 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.

Pent"house`, a. Leaning; overhanging. "Penthouse lid." Shak. "My penthouse eyebrows." Dryden.

Pen"tice (?), n. [F. appentis a penthouse. See Append.] A penthouse. [Obs.] Sir H. Wotton.

Pen"tile` (?), n. See Pantile.

Pen"tine (?), n. [See Penta-.] (Chem.) An unsaturated hydrocarbon, C5H8, of the acetylene series. Same as Valerylene.

Pen*to"ic (?), a. [See Penta-.] (Chem.) Pertaining to, or desingating, an acid (called also valeric acid) derived from pentane.

Pen"tone (?), n. [See Penta-.] (Chem.) Same as Valylene.

Pen*tox"ide (?), n. [Penta- + oxide.] (Chem.) An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5.

Pen"tre*mite (?), n. (Zoˆl.) Any species of Pentremites.

||Pen`tre*mi"tes (?), n. [NL., from Gr. &?; five + L. remus an oar.] ||(Zoˆl.) A genus of crinoids belonging to the Blastoidea. They have ||five petal-like ambulacra.

Pent"roof` (?), n. [F. pente slope + E. roof, or from penthouse roof.] See Lean-to.

Pen"trough` (?), n. A penstock.

Pen"tyl (?), n. [Penta + - yl.] (Chem.) The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as Amyl.

Pen*tyl"ic (?), a. Pertaining to, derived from, or containing, pentyl; as, pentylic alcohol

{ Pe"nu*chle (?), Pin"o*cle (?) }, n. A game at cards, played with forty-eight cards, being all the cards above the eight spots in two packs.

Pe"nult (?), n. [Abbreviated fr. penultima.] (Gram. & Pros.) The last syllable but one of a word; the syllable preceding the final one.

Pe*nul"ti*ma (?), n. [L. (sc. syllaba), fr. penultimus, paenultimus, the last but one; paene almost + ultimus the last.] Same as Penult.

Pe*nul"ti*mate (?), a. Last but one; as, the penultimate syllable, the last syllable but one of a word.

Pe*nul"ti*mate, n. The penult.

Pe*num"bra (?), n. [NL., fr. L. paene almost + umbra shade.] 1. An incomplete or partial shadow.