pentagram

Definitions

  • WordNet 3.6
    • n pentagram a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon
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Webster's Revised Unabridged Dictionary
    • n Pentagram A pentacle or a pentalpha. "Like a wizard pentagram ."
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Century Dictionary and Cyclopedia
    • n pentagram A five-pointed or five-lobed figure, as the figure of a five-rayed star; specifically, the magic sign also called pentacle. See pentacle.
    • n pentagram In geometry, a five-sided polygram.
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Chambers's Twentieth Century Dictionary
    • n Pentagram pen′ta-gram a five-pointed star: a magic figure so called
    • Pentagram This is the proper pentacle
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Etymology

Webster's Revised Unabridged Dictionary
Gr. , neut. of having five lines. See Penta-, and -gram

Usage

In literature:

It was to the Pentagram Circle that I first broached the new conceptions that were developing in my mind.
"The New Machiavelli" by Herbert George Wells
The pentagram prohibits thee?
"Faust" by Johann Wolfgang Von Goethe
The pentagram is crossed!
"The Thing from the Lake" by Eleanor M. Ingram
Then he calls a rat to gnaw a gap in the pentagram, and escapes.
"The Faust-Legend and Goethe's 'Faust'" by H. B. Cotterill
The pentagram looks like it.
"Black Spirits and White" by Ralph Adams Cram
Working together, we had once carved a pentagram in the side of this tree-trunk.
"On the Future of our Educational Institutions" by Friedrich Nietzsche
Spheres, planes, cones, circles, spirals, tetragrams, pentagrams, ellipses, and what-not.
"Unicorns" by James Huneker
In the midst of the room and inside the circularly arranged pentagram were the fire and incense-altar with holy water.
"The Magic of the Middle Ages" by Viktor Rydberg
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In news:

Father accused of carving pentagram into son's back .
Dec 12, 2012: Blood is smeared on the door frame at a home in Richland Hills, Texas, where Brent Troy Bartel is accused of using a box cutter to carve a pentagram in his six-year-old son's back .
'I shed some innocent blood,' man says after carving pentagram on son's back .
Police say he carved a pentagram onto the back of his 6-year-old son.
'I shed some innocent blood,' man says after carving pentagram on son's back.
'I shed some innocent blood ,' man says after carving pentagram on son's back.
Brent Troy Bartel carved a pentagram into his 6-year-old son's back.
Blood is smeared on the door frame at a home in Richland Hills, Texas, where Brent Troy Bartel is accused of using a box cutter to carve a pentagram in his six-year-old son's back on Wednesday, Dec 12, 2012.
His son is found with a large red pentagram carved on his back.
Officers in the Fort Worth suburb say they arrived and found that most of the child 's back was covered with a large pentagram.
Texas boy with pentagram carved back discharged .
Texas boy with pentagram carved on back discharged .
Freedom & Diversity : A Liberal Pentagram for Living Together.
Father allegedly carves pentagram onto son's back in Texas.
Father accused of carving pentagram into son's back.
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In science:

If P is the small stellated dodecahedron { 5 coincide with those of an icosahedron, S , and P has 12 pentagram faces.
Regular Polyhedra of Index Two, I
If we call these directions in counterclockwise order hr, sr, sl, and hl (for hard right , soft right , soft left , and hard left ), we have that [hr, hr ] and [hl, hl] represent the same shape, which is the pentagram shape of each face of P .
Regular Polyhedra of Index Two, I
For comparison, the inverse of the peak’s height for the conventional metal is also plotted (see dotted pentagram symbol), which is [(n + 1/2)/ ln 2].
Nernst and Seebeck effect in a graphene nanoribbon
The crossed circle symbols are for the graphene and dotted pentagram symbols are for the conventional metal.
Nernst and Seebeck effect in a graphene nanoribbon
It would also be interesting to know what parts of Hilbert space that are essential for the proofs. I go on to discuss cubes, graphs, and pentagrams.
Gleason, Kochen-Specker, and a competition that never was
To see this let us focus on a simple subgraph of the orthogonality graphs that we have encountered, namely the pentagon (or equivalently the pentagram).
Gleason, Kochen-Specker, and a competition that never was
We can imagine a platter with a pentagram drawn on it, and five cup s placed upside down over the vertices.
Gleason, Kochen-Specker, and a competition that never was
Nobody expects this to happen in a pentagram experiment, but I am suggesting that we have as yet no reason to be dogmatic about the outcome of similar experiments for higher dimensional systems.
Gleason, Kochen-Specker, and a competition that never was
So far two quantum optical experiments have been made to test the pentagram inequality [37, 38].
Gleason, Kochen-Specker, and a competition that never was
In effect one of the vertices of the pentagram does not close.
Gleason, Kochen-Specker, and a competition that never was
You may recall that it was precisely through such an open vertex that the devil got into Faust’s pentagram .
Gleason, Kochen-Specker, and a competition that never was
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