a part of a structure having some specific characteristic or function | an area on the skin that is highly sensitive to pressure |
the extent of a 2-dimensional surface enclosed within a boundary | where problems or difficulties are likely to occur |
a part of an animal that has a special function or is supplied by a given artery or nerve | any of several points on the body where the pulse can be felt and where pressure on an underlying artery will control bleeding from that artery at a more distal point |
a subject of study | |
a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography) | |
a particular environment or walk of life | |