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A plane figure with six straight sides and angles.
‘The first day of school, she told me that I must be pretty stupid if I didn't know a hexagon had six sides.’
‘You might define a more-general class polygon, which would have triangle as a subclass, along with other subclasses such as quadrilateral, pentagon and hexagon.’
‘For example, 10 carbon atoms can be arranged into two conjoined hexagons, each hexagon sharing two carbon atoms with the other.’
‘The design radiates symmetrically from a central point and is constructed from a pattern of circles, equilateral triangles, squares, hexagons and/or six-pointed stars.’
‘Carbon atoms are linked into hexagons, and the hexagonal pattern makes up the walls of a cylinder only nanometers wide.’
‘The diamond core remains intact, but the surface breaks into carbon hexagons and pentagons, effectively encasing the diamond in a shell similar to a buckyball, which is also called a fullerene.’
‘On the east side of the hexagon, opposite the entrance from the sea, there is a large porticoed square with its west side open to the harbour, and containing a central structure - possibly a temple.’
‘They come in two shapes, either a square or a hexagon.’
‘The hexagons, pentagons, and triangles that make up the biomes all have their own unique specification due to the irregular nature of the site.’
‘In the other case, the sides of the hexagon are parallel to the sides of the given triangle.’
‘Secondly, simple, geometric plans such as squares, triangles, and hexagons are common to the most dramatic of these examples.’
‘Triangles, squares and hexagons create their own proportions and systems.’
‘The bee's honeycombs, pristine hexagons, are symmetrical over several axes.’
‘Perfect crystal structures can contain pyramids, cubes, or hexagons, but not pentagons.’
‘Resembling the shape of a football, Fullerene contains 60 carbon molecules in hexagons and pentagons.’
‘They are formed from 60 atoms of carbon bonded together in a combination of pentagons and hexagons to form a ball, just like a soccer ball.’
‘This requires that their underlying lattices be based on triangles, parallelograms, or hexagons.’
‘This time the board is made up of hexagons (instead of squares) and up to four may play.’
‘For those who don't know, a buckyball is an extremely stable soccer-ball-shaped molecule made up of 20 hexagons and 12 pentagons.’
‘It is composed of pentagons and hexagons of carbon atoms arranged in a sphere, just like a football (or soccer ball for US readers).’
Origin
Late 16th century: via late Latin from Greek hexagōnon, neuter (used as a noun) of hexagōnos ‘six-angled’.