(Bor"nite) n. [Named after Von Born, a mineralogist.] (Min.) A valuable ore of copper, containing
copper, iron, and sulphur; also called purple copper ore in allusion to the colors shown upon the
slightly tarnished surface.
(Bo`ro*flu"or*ide) n. [Boron + fluoride.] (Chem.) A double fluoride of boron and hydrogen,
or some other positive element, or radical; called also fluoboride, and formerly fluoborate.
(Bo"ro*glyc"er*ide) n. [Boron + glyceride.] (Chem.) A compound of boric acid and
glycerin, used as an antiseptic.
(Bo"ron) n. [See Borax.] (Chem.) A nonmetallic element occurring abundantly in borax. It
is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a
substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the
diamond in hardness and other properties. It occurs in nature also in boracite, datolite, tourmaline, and
some other minerals. Atomic weight 10.9. Symbol B.
(Bo"ro*sil"i*cate) n. [Boron + silicate.] (Chem.) A double salt of boric and silicic acids, as
in the natural minerals tourmaline, datolite, etc.
(Bor"ough) n. [OE. burgh, burw, boru, port, town, burrow, AS. burh, burg; akin to Icel., Sw.,
& Dan. borg, OS. & D. burg, OHG. puruc, purc, MHG. burc, G. burg, Goth. baúrgs; and from the
root of AS. beorgan to hide, save, defend, G. bergen; or perh. from that of AS. beorg hill, mountain.
&radic95. See Bury, v. t., and cf. Burrow, Burg, Bury, n., Burgess, Iceberg, Borrow, Harbor,
1. In England, an incorporated town that is not a city; also, a town that sends members to parliament; in
Scotland, a body corporate, consisting of the inhabitants of a certain district, erected by the sovereign,
with a certain jurisdiction; in America, an incorporated town or village, as in Pennsylvania and Connecticut.
2. The collective body of citizens or inhabitants of a borough; as, the borough voted to lay a tax.
Close borough, or Pocket borough, a borough having the right of sending a member to Parliament,
whose nomination is in the hands of a single person. Rotten borough, a name given to any borough
which, at the time of the passage of the Reform Bill of 1832, contained but few voters, yet retained the
privilege of sending a member to Parliament.
(Bor"ough), n. [See Borrow.] (O. Eng. Law) (a) An association of men who gave pledges or
sureties to the king for the good behavior of each other. (b) The pledge or surety thus given. Blackstone.
(Bor"ough-Eng"lish) n. (Eng. Law) A custom, as in some ancient boroughs, by which
lands and tenements descend to the youngest son, instead of the eldest; or, if the owner have no issue,
to the youngest brother. Blackstone.
(Bor"ough*head`) n. See Headborough. [Obs.]
(Bor"ough*hold"er) n. A headborough; a borsholder.
(Bor"ough*mas"ter) n. [Cf. Burgomaster.] The mayor, governor, or bailiff of a borough.
(Bor"ough*mon"ger) n. One who buys or sells the parliamentary seats of boroughs.
(Bor"ough*mon"ger*ing, Bor"ough*mon"ger*y) n. The practices of a boroughmonger.
(Bor*rach"o) n. See Borachio. [Obs.]