Sector

• a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)

• a subject of study

• a part of an animal that has a special function or is supplied by a given artery or nerve

• a particular environment or walk of life

• a part of a structure having some specific characteristic or function

• the extent of a 2-dimensional surface enclosed within a boundary

• a locally circumscribed place characterized by some distinctive features

• any of the regions of the surface of the Earth loosely divided according to latitude or longitude

• an area or region distinguished from adjacent parts by a distinctive feature or characteristic

• (anatomy) any encircling or beltlike structure

• regulate housing in; of certain areas of towns

• separate or apportion into sections

• a division of some larger or more complex organization

• a division of a stem, or secondary stem arising from the main stem of a plant

• a part of a forked or branching shape

• a natural consequence of development

• a stream or river connected to a larger one

• any projection that is thought to resemble a human arm

• grow and send out branches or branch-like structures

• divide into two or more branches so as to form a fork