normal >> ˈnɔːm(ə)l
Definition: [adjective] conforming to a standard; usual, typical, or expected.
Example: it's quite normal for puppies to bolt their food
Definition: [adjective] (of a line, ray, or other linear feature) intersecting a given line or surface at right angles.
Example: a single plane of symmetry with a diad axis normal to it
Definition: [adjective] (of a salt solution) containing the same salt concentration as the blood.
Example: dilute the stock solution with sterile water or normal saline
Definition: [adjective] denoting a fault or faulting in which a relative downward movement occurred in the strata situated on the upper side of the fault plane.
Definition: [noun] the usual, typical, or expected state or condition.
Example: her temperature was above normal
Definition: [noun] a line at right angles to a given line or surface.
Example: the view is along the normal to the surface