[ də(ʊ)'meɪn ]
1》 an area owned or controlled by a ruler or government.
↘a sphere of activity or knowledge.
2》 Computing a distinct subset of the Internet with addresses sharing a common suffix.
3》 Mathematics the possible values of the independent variable or variables of a function.
4》 Physics a discrete region of magnetism in ferromagnetic material.
5》 Biochemistry a distinct region of a complex molecule or structure.
domanial də'meɪnɪəl adjective
ME: from Fr. ~e , alt. (by assoc. with L. dominus 'lord') of OFr. demeine (see demesne ).