hex ‧ a ‧ gon /ˈheksəɡən $ -ɡɑːn/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Greek ; Origin: hexagonos , from hex 'six' + gonia 'angle' ]
a shape with six sides ⇨ polygon
—hexagonal /hekˈsæɡən ə l/ adjective
hex ‧ a ‧ gon /ˈheksəɡən $ -ɡɑːn/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Greek ; Origin: hexagonos , from hex 'six' + gonia 'angle' ]
a shape with six sides ⇨ polygon
—hexagonal /hekˈsæɡən ə l/ adjective
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012