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• He met Luis Suarez's cross at the far post, only for Chelsea keeper Petr Cech to show brilliant reflexes to deflect his header on to the bar. Carroll turned away to lead Liverpool's insistent protests that the ball had crossed the line but referee Phil Dowd and assistant referee Andrew Garratt waved play on, with even a succession of replays proving inconclusive.
• Yon gray is not the morning's eye, / 'Tis but the pale reflex of Cynthia's brow.
• On the depths of death there swims / The reflex of a human face.
• the reflex act of the soul, or the turning of the intellectual eye inward upon its own actions
• A polygon is said to be convex when no one of its angles is reflex.
• An angle less than a right angle is said to be acute; one greater than a right angle but less than a straight angle is said to be obtuse; one greater than a straight angle but less than a perigon is said to be reflex or convex.
• If the reflex region is the interior of the angle, the dihedral angle is reflex.
• A reflex edge of a polyhedron is an edge where the inner dihedral angle subtended by two incident faces is greater than 180°.
• We say that an angle is convex if it is not reflex.
• P denotes a polygon and r the number of reflex vertices.