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Pentacra
pl.
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of Pentacron
Pentacrons
pl.
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of Pentacron
Pentacron
n.
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A solid having five summits or angular points.
Pentacrostic
n.
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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.
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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.
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Having the valence of a pentad.
Pentadactyl
a.
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Alt. of Pentadactyle
Pentadactyle
a.
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Having five digits to the hand or foot.
Pentadactyle
a.
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Having five appendages resembling fingers or toes.
Pentadactyloid
a.
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Having the form of, or a structure modified from, a pentadactyl limb.
Pentadecane
n.
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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.
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Of, pertaining to, or derived from, pentadecane, or designating an acid related to it.
Pentadecylic
a.
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Same as Quindecylic.
Pentadelphous
a.
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Having the stamens arranged in five clusters, those of each cluster having their filaments more or less united, as the flowers of the linden.
Pentaglot
n.
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A work in five different tongues.
Pentagon
n.
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A plane figure having five angles, and, consequently, five sides; any figure having five angles.
Pentagonal
a.
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Having five corners or angles.
Pentagonally
adv.
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In the form of a pentagon; with five angles.
Pentagonous
a.
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Pentagonal.
Pentagram
n.
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A pentacle or a pentalpha.
Pentagraphic
a.
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Alt. of Pentagraphical
Pentagraphical
a.
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Pantographic. See Pantograph.
Pentagynia
n. pl.
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A Linnaean order of plants, having five styles or pistils.
Pentagynian
a.
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Alt. of Pentagynous
Pentagynous
a.
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Of or pertaining to plants of the order Pentagyna; having five styles.
Pentahedral
a.
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Having five sides; as, a pentahedral figure.
Pentahedrical
a.
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Pentahedral.
Pentahedron
n.
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A solid figure having five sides.
Pentahedrous
a.
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Pentahedral.
Pentail
n.
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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.