Definition:Reflection (Geometry)/Plane/Axis

Definition

Let $\phi_{AB}$ be a reflection in the plane in the straight line $AB$.

Then $AB$ is known as the axis (of reflection) of $\phi_{AB}$.

Also known as

An axis of reflection is also known as a mirror line.

Also see

• Results about geometric reflections can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): reflection: 2. (in a line)
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): reflection: 2. (in a line)