(mathematics) A measure of the extent of a surface; it is measured in square units. / A particular geographic region. / Any particular extent of surface, especially an empty or unused extent.

plural of area

(computing, graphical user interface) An area of the taskbar used for icons and alerts.

(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.

An area that has been the site of a natural disaster that receives an official designation entitling residents and organizations within that area to receive relief and benefits.

(soccer) The area of the pitch, extending six yards from the goal, from which a goal kick is taken.

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.

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

(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).