Pentacrinite (n.) Any species of Pentacrinus.
Pentacrinoid (n.) An immature comatula when it is still attached by a stem, and thus resembles a Pentacrinus.
Pentacrinus (n.) A genus of large, stalked crinoids, of which several species occur in deep water among the West Indies and elsewhere.
Pentacra (pl. ) of Pentacron
Pentacrons (pl. ) of Pentacron
Pentacron (n.) A solid having five summits or angular points.
Pentacrostic (n.) A set of verses so disposed that the name forming the subject of the acrostic occurs five times -- the whole set of verses being divided into five different parts from top to bottom.
Pentad (n.) Any element, atom, or radical, having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad; as, nitrogen is a pentad in the ammonium compounds.
Pentad (a.) Having the valence of a pentad.
Pentadactyl (a.) Alt. of Pentadactyle
Pentadactyle (a.) Having five digits to the hand or foot.
Pentadactyle (a.) Having five appendages resembling fingers or toes.
Pentadactyloid (a.) Having the form of, or a structure modified from, a pentadactyl limb.
Pentadecane (n.) A hydrocarbon of the paraffin series, (C15H32) found in petroleum, tar oil, etc., and obtained as a colorless liquid; -- so called from the fifteen carbon atoms in the molecule.
Pentadecatoic (a.) Of, pertaining to, or derived from, pentadecane, or designating an acid related to it.
Pentadecylic (a.) Same as Quindecylic.
Pentadelphous (a.) Having the stamens arranged in five clusters, those of each cluster having their filaments more or less united, as the flowers of the linden.
Pentafid (a.) Divided or cleft into five parts.
Pentaglot (n.) A work in five different tongues.
Pentagon (n.) A plane figure having five angles, and, consequently, five sides; any figure having five angles.
Pentagonal (a.) Having five corners or angles.
Pentagonally (adv.) In the form of a pentagon; with five angles.
Pentagonous (a.) Pentagonal.
Pentagram (n.) A pentacle or a pentalpha.
Pentagraphic (a.) Alt. of Pentagraphical
Pentagraphical (a.) Pantographic. See Pantograph.
Pentagynia (n. pl.) A Linnaean order of plants, having five styles or pistils.
Pentagynian (a.) Alt. of Pentagynous
Pentagynous (a.) Of or pertaining to plants of the order Pentagyna; having five styles.
Pentahedral (a.) Having five sides; as, a pentahedral figure.
Pentahedrical (a.) Pentahedral.
Pentahedron (n.) A solid figure having five sides.
Pentahedrous (a.) Pentahedral.
Pentail (n.) A peculiar insectivore (Ptilocercus Lowii) of Borneo; -- so called from its very long, quill-shaped tail, which is scaly at the base and plumose at the tip.
Pentalpha (n.) A five-pointed star, resembling five alphas joined at their bases; -- used as a symbol.
Pentamera (n. pl.) An extensive division of Coleoptera, including those that normally have five-jointed tarsi. It embraces about half of all the known species of the Coleoptera.
Pentameran (n.) One of the Pentamera.
Pentamerous (a.) Divided into, or consisting of, five parts; also, arranged in sets, with five parts in each set, as a flower with five sepals, five petals, five, or twice five, stamens, and five pistils.
Pentamerous (a.) Belonging to the Pentamera.
Pentamerus (n.) A genus of extinct Paleozoic brachiopods, often very abundant in the Upper Silurian.
Pentameter (n.) A verse of five feet.
Pentameter (a.) Having five metrical feet.
Pentamethylene (n.) A hypothetical hydrocarbon, C5H10, metameric with the amylenes, and the nucleus of a large number of derivatives; -- so named because regarded as composed of five methylene residues. Cf. Trimethylene, and Tetramethylene.
Pentandria (n. pl.) A Linnaean class of plants having five separate stamens.
Pentandrian (a.) Alt. of Pentandrous
Pentandrous (a.) Of or pertaining to the class Pentadria; having five stamens.
Pentane (n.) Any one of the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.
Pentangle (n.) A pentagon.
Pentangular (a.) Having five corners or angles.
Pentapetalous (a.) Having five petals, or flower leaves.
Pentaphyllous (a.) Having five leaves or leaflets.
Pentapody (n.) A measure or series consisting of five feet.
Pentaptote (n.) A noun having five cases.
Pentaptych (n.) A picture, or combination of pictures, consisting of a centerpiece and double folding doors or wings, as for an altarpiece.
Pentarchy (n.) A government in the hands of five persons; five joint rulers.
Pentaspast (n.) A purchase with five pulleys.
Pentaspermous (a.) Containing five seeds.
Pentastich (n.) A composition consisting of five verses.
Pentastichous (a.) Having, or arranged in, five vertical ranks, as the leaves of an apple tree or a cherry tree.
Pentastomida (n. pl.) Same as Linguatulina.
Pentastyle (a.) Having five columns in front; -- said of a temple or portico in classical architecture.
Pentastyle (n.) A portico having five columns.
Pentateuch (n.) The first five books of the Old Testament, collectively; -- called also the Law of Moses, Book of the Law of Moses, etc.
Pentateuchal (a.) Of or pertaining to the Pentateuch.
Pentathionic (a.) Pertaining to, or designating, an acid of sulphur obtained by leading hydrogen sulphide into a solution of sulphur dioxide; -- so called because it contains five atoms of sulphur.
Pentathlon (n.) A fivefold athletic performance peculiar to the great national games of the Greeks, including leaping, foot racing, wrestling, throwing the discus, and throwing the spear.
Pentatomic (a.) Having five atoms in the molecule.
Pentatomic (a.) Having five hydrogen atoms capable of substitution.
Pentavalent (a.) Having a valence of five; -- said of certain atoms and radicals.
Penteconter (n.) A Grecian vessel with fifty oars.
Pentecost (n.) 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.
Pentecost (n.) 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.
Pentecostal (a.) Of or pertaining to Pentecost or to Whitsuntide.
Pentecostals (n. pl.) Offerings formerly made to the parish priest, or to the mother church, at Pentecost.
Pentecoster (n.) An officer in the Spartan army commanding fifty men.
Pentecosties (pl. ) of Pentecosty
Pentecosty (n.) A troop of fifty soldiers in the Spartan army; -- called also pentecostys.
Pentelic (a.) Alt. of Pentelican
Pentelican (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.
Pentene (n.) Same as Amylene.
Penthouse (n.) A shed or roof sloping from the main wall or building, as over a door or window; a lean-to. Also figuratively.
Penthouse (a.) Leaning; overhanging.
Pentice (n.) A penthouse.
Pentile (n.) See Pantile.
Pentine (n.) An unsaturated hydrocarbon, C5H8, of the acetylene series. Same as Valerylene.
Pentoic (a.) Pertaining to, or desingating, an acid (called also valeric acid) derived from pentane.
Pentone (n.) Same as Valylene.
Pentoxide (n.) An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5.
Pentremite (n.) Any species of Pentremites.
Pentremites (n.) A genus of crinoids belonging to the Blastoidea. They have five petal-like ambulacra.
Pentroof (n.) See Lean-to.
Pentrough (n.) A penstock.
Pentyl (n.) The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as Amyl.
Pentylic (a.) Pertaining to, derived from, or containing, pentyl; as, pentylic alcohol
Penuchle (n.) Alt. of Pinocle
Pinocle (n.) A game at cards, played with forty-eight cards, being all the cards above the eight spots in two packs.
Penult (n.) The last syllable but one of a word; the syllable preceding the final one.
Penultima (n.) Same as Penult.
Penultimate (a.) Last but one; as, the penultimate syllable, the last syllable but one of a word.
Penultimate (n.) The penult.