(physics) The square of the Planck length, thought to be the quantum of area. Symbol is A_P.

(television) The area of a television image that is expected to be viewable on all television screens, including old ones that typically crop the borders of the image.

A place built alongside a limited-access road where one can stop to buy fuel, refreshments, and so on.

A place to gather in preparation.

(military, of devices, typically weapons) Intended to prevent an adversary from occupying or traversing a certain area of land.

(European politics) The group of European countries that have signed the Schengen Agreement, abolishing border controls between each other.

(anatomy) The posterior section of the superior temporal gyrus in the dominant cerebral hemisphere, one of two parts of the cerebral cortex linked with speech (the other being Broca's area).

A rule stating that an airplane designed with the same cross-sectional area distribution in the longitudinal direction as the Sears-Haack body generates the same wave drag as this body, largely independent of the actual shape; used in aerodynamics to reduce drag, typically by narrowing the fuselage at the wing roots.

(geometry) The sum of the areas of the lateral (vertical) faces of a cylinder, cone, frustum, or the like. / (medicine, dated) A particular part of the medulla oblongata.

An urban area of North Rhine-Westphalia, Germany; the largest urban agglomeration in Germany.