What's the difference between pentagon and polygon?

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).

Polygon


Definition:

  • (n.) A plane figure having many angles, and consequently many sides; esp., one whose perimeter consists of more than four sides; any figure having many angles.

Example Sentences:

  • (1) Gap junctions were of different sizes and frequently composed of a small number of connexons organized in polygonal aggregates or linear arrays.
  • (2) The isolated outer sheath was observed as a triple-layered, closed vesicle carrying a polygonal array by electron microscopy.
  • (3) Electron microscopically, the tumor cell nuclei were oval or polygonal and sometimes slightly invaginated, with a few prominent nucleoli.
  • (4) Delimitation of the pathological process in the lung is characterized by an increase in the number of T- and B-lymphocytes and considerable predominance of polygonally shaped cells with cytoplasmic outgrowths of different lengths and their subsequent replacement by a cell form transitory between T- and B-lymphocytes.
  • (5) At day 12-15, some nodules consisting of polygonal cells were formed in all culture conditions, and these nodules were mineralized 2-3 days later.
  • (6) The majority of the choline acetyltransferase-immunoreactive neurons had fusiform, oval, or polygonal somata with somatic diameters greater than 20 microns and contained deeply invaginated nuclei surrounded by copious cytoplasm.
  • (7) One type of cells had polygonal morphology, showed density-dependent contact inhibition at confluence in vitro, showed lectin-binding characteristics of endothelium (but only moderate positivity for factor VIII antigen), demonstrated induction of gamma-glutamyl transpeptidase when exposed to astrocyte-conditioned media, and responded to insulin by a pronounced increase in DNA synthesis.
  • (8) The first type included large multipolar neurons with triangular or polygonal perikarya and typically 3-5 dendrites emerging from the poles of each cell.
  • (9) Type II neurons had multipolar or polygonal cell bodies, which measured an average 31 micrometer by 43 micrometer and emitted four to seven primary dendrites.
  • (10) "En face" views of the epithelial cells showed capping protein distributed in a polygonal pattern coincident with cell boundaries in intestinal epithelium, sensory epithelium of the cochlea, and the pigmented epithelium of the retina and at regions of cell-cell contact between chick embryo kidney cells in culture.
  • (11) Polygonal, foamy macrophages were found in 12 cases.
  • (12) The subcultured HNC and ADPKD cells retained characteristic epithelial polygonal and elongated shape and positive immunofluorescent staining for cytokeratin.
  • (13) The slightly prominent apices of the superficial epithelial cells are more or less polygonal in shape and covered with short microvilli among which small granules as possible morphological expression of a secretory activity are detectable.
  • (14) Initially, they grew as individual polygonal cells, tending to form tight confluent monolayers with poorly defined intercellular boundaries.
  • (15) A 3rd type displayed a polygonal outline and increased cytoplasm.
  • (16) While the arteries show a long stretched spinle or lancet like form they change over blunt, oval, triangular or rhomboid forms into polygonal cells with spiked border lines at the venules.
  • (17) Also PMA was found to cause a profound change in astrocyte morphology; cells were converted from flat, polygonal, undifferentiated cells to process-bearing cells.
  • (18) On these substrata, cultured astrocytes changed their shape from flat and polygonal to stellate in the absence of hormones or growth factor supplements.
  • (19) The cells have a spindle, round or polygonal shape with neoplastic and pleomorphic features that grew in multilayers without contact inhibition.
  • (20) The rate constant for clearance as described in the paper represents a non-invasive method for rapid evaluation of the uptake capacity of the liver and, in particular, with regard to the polygonal cells of the liver parenchyma when IDA derivatives are employed.