Definitions:
conforming to a standard; usual, typical, or expected

(of a line, ray, or other linear feature) intersecting a given line or surface at right angles

(of a salt solution) containing the same salt concentration as the blood

denoting a fault or faulting in which a relative downward movement occurred in the strata situated on the upper side of the fault plane.

the usual, typical, or expected state or condition

a line at right angles to a given line or surface