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Peridium
n.
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The envelope or coat of certain fungi, such as the puffballs and earthstars.
Peridot
n.
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Chrysolite.
Peridotite
n.
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An eruptive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc. It is often altered to serpentine.
Peridrome
n.
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The space between the columns and the wall of the cella, in a Greek or a Roman temple.
Periecians
n. pl.
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See Perioecians.
Perienteron
n.
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The primitive perivisceral cavity.
Periergy
n.
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Excessive care or diligence.
Periergy
n.
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A bombastic or labored style.
Periganglionic
a.
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Surrounding a ganglion; as, the periganglionic glands of the frog.
Perigastric
a.
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Surrounding the stomach; -- applied to the body cavity of Bryozoa and various other Invertebrata.
Perigean
a.
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Pertaining to the perigee.
Perigee
n.
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Alt. of Perigeum
Perigeum
n.
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That point in the orbit of the moon which is nearest to the earth; -- opposed to apogee. It is sometimes, but rarely, used of the nearest points of other orbits, as of a comet, a planet, etc. Called also epigee, epigeum.
Perigenesis
n.
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A theory which explains inheritance by the transmission of the type of growth force possessed by one generation to another.
Perigenetic
a.
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Of or pertaining to perigenesis.
Perigone
n.
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Any organ inclosing the essential organs of a flower; a perianth.
Perigone
n.
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In mosses, the involucral bracts of a male flower.
Perigone
n.
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A sac which surrounds the generative bodies in the gonophore of a hydroid.
Perigonia
pl.
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of Perigonium
Perigonium
n.
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Same as Perigone.
Perigord pie
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A pie made of truffles, much esteemed by epicures.
Perigraph
n.
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A careless or inaccurate delineation of anything.
Perigynia
pl.
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of Perigynium
Perigynium
n.
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Some unusual appendage about the pistil, as the bottle-shaped body in the sedges, and the bristles or scales in some other genera of the Sedge family, or Cyperaceae.
Perigynous
a.
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Having the ovary free, but the petals and stamens borne on the calyx; -- said of flower such as that of the cherry or peach.
Perihelia
pl.
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of Perihelium
Perihelion
n.
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Alt. of Perihelium
Perihelium
n.
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That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.
Peril
n.
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Danger; risk; hazard; jeopardy; exposure of person or property to injury, loss, or destruction.
Periled
imp. & p. p.
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of Peril