What's the difference between pentagon and pyritohedron?
Pentagon
Definition:
(n.) A plane figure having five angles, and, consequently, five sides; any figure having five angles.
Example Sentences:
(1) Speaking to reporters at the Pentagon, People's Liberation Army's chief of the general staff Gen Fang Fenghui also warned that the US must be objective about tensions between China and Vietnam or risk harming relations between Washington and Beijing.
(2) "We believe BAE's earnings could stagnate until the middle of this decade," said Goldman, which was also worried that performance fees on a joint fighter programme in America had been withheld by the Pentagon, and the company still had a yawning pension deficit.
(3) The Pentagon leadership suggested to a Senate panel on Tuesday that US ground troops may directly join Iraqi forces in combat against the Islamic State (Isis), despite US president Barack Obama’s repeated public assurances against US ground combat in the latest Middle Eastern war.
(4) In both cases, the immunostaining was restricted to structures which appeared in longitudinal section as fairly straight rods and in cross section as 7- to 10-nm pentagonal or roughly circular profiles outlining a lumen with a central dot.
(5) I don’t do the social media myself, so who knows.” The Pentagon said the drone, also described as a “glider” or unmanned underwater vehicle, was deployed by civilian contractors aboard the USNS Bowditch, a scientific research ship.
(6) Operations are ongoing,” a Pentagon spokesman, army colonel Steve Warren, confirmed on Wednesday afternoon.
(7) All aircraft left the strike areas safely, the Pentagon said.
(8) The Pentagon says the troops have rarely, if ever, participated directly in combat against Isis fighters.
(9) They are each aligned almost parallel to the axis of the receptor, conferring a high degree of pentagonal symmetry to the bilayer portion and a contiguous region on the synaptic side.
(10) It’s another sign of how dangerous Isis is – but it doesn’t change a lot.” Pentagon officials said they had seen no “confirmable link” indicating that Isis had unleashed a chemical attack on Aleppo.
(11) Even the Pentagon’s website for the war prefers the relatively antiseptic term “ Targeted Operations Against [Isis] Terrorists ”.
(12) The president should have directed the Justice Department to stop taking stupid points and petty appeals.” One reason the Justice Department pursued the habeas cases so hard was its client: the Pentagon.
(13) Last week the Pentagon revealed an assessment saying that goal was "on track" even as it also acknowledged that civilian casualties – mostly caused by the Taliban – had reached record numbers this summer with 450 dying in July alone.
(14) Former Pentagon General Counsel Jeh Johnson told 60 Minutes last week about that, when it comes to approving or rejecting the military’s request for drone strikes, “to say no is like stepping in front of a 90-car freight train.” An important new report released by the Open Society Justice Initiative this week also shows that - despite the Obama administration’s internal requirements for drone strikes that supposedly require a “near certainty” that civilians won’t get killed - the government quite often just disregards its own rules, which has led to the death of dozens of civilians in Yemen in the past two years.
(15) On Wednesday, the director of the charity said the US military did not give prior notification of the airstrike, in an apparent violation of the Pentagon’s own instructions on the rules of war.
(16) That left the decision on whether to continue to Crawford, whose delay on announcing a decision prompted concern at the Pentagon that she would allow the court process to continue.
(17) The attacks on the Pentagon's computer system were described by Dr Sandra Bell, head of Rusi's homeland security department, as "very much a wake-up call".
(18) "We decline to comment on Chinese flights, but the United States will continue to partner with our allies and operate in the area as normal," a Pentagon spokesman said.
(19) The Pentagon believed a combination of clever tactics and sheer luck allowed a Soviet-built SA-3 missile to bring down the jet.
(20) In short: the Pentagon damage report concludes that the "staggering" cache of documents that Snowden might have taken (most of which he probably didn't) could potentially cause grave harm if disclosed to a foreign power (which, as far as we know, they haven't been), and assumed that only genuinely super-sensitive information gets classified (which top intelligence officials concede isn't true).
Pyritohedron
Definition:
(n.) The pentagonal dodecahedron, a common form of pyrite.