Angle deviation from initial path.

(surveying) A measure of how far the direction of the local gravity field has been shifted at a certain point on the Earth by local anomalies such as nearby mountains.

In electromagnetism, electrostatic deflection refers to a way of modifying the path of a beam of charged particles by the use of an electric field applied transverse to the path of the particles.

Controls electron beam in CRTs.

(firearms) The adjustment of a sight, exactly parallel to the axis of the bore of the gun to which it is attached.

Deflection of objects by wind.

In the electrocardiogram, the intrinsicoid deflection is the downstroke of the QRS complex, from its highest amplitude until it reaches the baseline or lower.