an area of territory owned or controlled by a ruler or government 领土,领地 the south-western French domains of the Plantagenets. 金雀花王朝统治下的法国西南边的领土。 ■a specified sphere of activity or knowledge (活动)范围;(知识)领域 the country's isolation in the domain of sport. 该国在运动领域的孤立。 ■(Physics)a discrete region of magnetism in ferromagnetic material (物理)区域;畴 ■(Computing)a distinct subset of the Internet with addresses sharing a common suffix, such as the part in a particular country or used by a particular group of users (计算机)域 ■(Mathematics)the set of possible values of the independent variable or variables of a function (数)域
语源
late Middle English (denoting heritable or landed property): from French domaine, alteration (by association with Latin dominus 'lord') of Old French demeine 'belonging to a lord' (see demesne)