2. In Portugal and Brazil, the title given to a member of the higher classes. [ 1913 Webster ]

2. Subjugation. [ Obs. ] Hobbes. [ 1913 Webster ]

2. The territory over which dominion or authority is exerted; the possessions of a sovereign or commonwealth, or the like. Also used figuratively. [ wns=2 ] [ 1913 Webster ]

The domain of authentic history. E. Everett. [ 1913 Webster ]

The domain over which the poetic spirit ranges. J. C. Shairp. [ 1913 Webster ]

3. Landed property; estate; especially, the land about the mansion house of a lord, and in his immediate occupancy; demesne. [ wns=2 ] Shenstone. [ 1913 Webster ]

4. (Law) Ownership of land; an estate or patrimony which one has in his own right; absolute proprietorship; paramount or sovereign ownership. [ 1913 Webster ]

5. (Math.) the set of values which the independent variable of a function may take. Contrasted to range, which is the set of values taken by the dependent variable. [ wns=3 ] [ PJC ]

6. (Math.) a connected set of points, also called a region. [ PJC ]

7. (Physics) a region within a ferromagnetic material, composed of a number of atoms whose magnetic poles are pointed in the same direction, and which may move together in a coordinated manner when disturbed, as by heating. The direction of polarity of adjacent domains may be different, but may be aligned by a strong external magnetic field. [ PJC ]

8. (Computers) an address within the internet computer network, which may be a single computer, a network of computers, or one of a number of accounts on a multiuser computer. The domain specifies the location (host computer) to which communications on the internet are directed. Each domain has a corresponding 32-bit number usually represented by four numbers separated by periods, as 128.32.282.56. Each domain may also have an alphabetical name, usually composed of a name plus an extension separated by a period, as worldsoul.org; the alphabetical name is referred to as a domain name. [ PJC ]

9. (Immunology) the three-dimensional structure within an immunoglobulin which is formed by one of the homology regions of a heavy or light chain. Dict. Sci. Tech. [ PJC ]

10. the field of knowledge, expertise, or interest of a person; as, he had a limited domain of discourse; I can't comment on that, it's outside my domain. [ wns=5 ]
Syn. -- domain, realm, field, area. [ PJC ]

11. a particular environment or walk of life. [ wns=1 ]
Syn. -- sphere, domain, area, orbit, field, arena. [ PJC ]

12. people in general; especially a distinctive group of people with some shared interest. [ wns=4 ]
Syn. -- world, domain. [ PJC ]

Public domain, 1. the territory belonging to a State or to the general government; public lands. [ U.S. ] -- 2. the situation or status of intellectual property which is not protected by copyright, patent or other restriction on use. Anything
in the public domain may be used by anyone without restriction. The effective term of force of copyrights and patents are limited by statute, and after the term expires, the writings and inventions thus protected go into the public domain and are free for use by all. --
Right of eminent domain, that superior dominion of the sovereign power over all the property within the state, including that previously granted by itself, which authorizes it to appropriate any part thereof to a necessary public use, reasonable compensation being made. [ 1913 Webster ]

Approach the dome, the social banquet share. Pope. [ 1913 Webster ]

2. (Arch.) A cupola formed on a large scale. [ 1913 Webster ]

☞ “The Italians apply the term il duomo to the principal church of a city, and the Germans call every cathedral church Dom; and it is supposed that the word in its present English sense has crept into use from the circumstance of such buildings being frequently surmounted by a cupola.” Am. Cyc. [ 1913 Webster ]

3. Any erection resembling the dome or cupola of a building; as the upper part of a furnace, the vertical steam chamber on the top of a boiler, etc. [ 1913 Webster ]

4. (Crystallog.) A prism formed by planes parallel to a lateral axis which meet above in a horizontal edge, like the roof of a house; also, one of the planes of such a form. [ 1913 Webster ]

☞ If the plane is parallel to the longer diagonal (macrodiagonal) of the prism, it is called a macrodome; if parallel to the shorter (brachydiagonal), it is a brachydome; if parallel to the inclined diagonal in a monoclinic crystal, it is called a clinodome; if parallel to the orthodiagonal axis, an orthodome. Dana. [ 1913 Webster ]