Definition of coal basins. Meaning of coal basins. Synonyms of coal basins
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Definition of coal basins
coal basins Basin Ba"sin, n. [OF. bacin, F. bassin, LL. bacchinus, fr.
bacca a water vessel, fr. L. bacca berry, in allusion to the
round shape; or perh. fr. Celtic. Cf. Bac.]
1. A hollow vessel or dish, to hold water for washing, and
for various other uses.
2. The quantity contained in a basin.
3. A hollow vessel, of various forms and materials, used in
the arts or manufactures, as that used by glass grinders
for forming concave glasses, by hatters for molding a hat
into shape, etc.
4. A hollow place containing water, as a pond, a dock for
ships, a little bay.
5. (Physical Geog.)
(a) A circular or oval valley, or depression of the
surface of the ground, the lowest part of which is
generally occupied by a lake, or traversed by a river.
(b) The entire tract of country drained by a river, or
sloping towards a sea or lake.
6. (Geol.) An isolated or circumscribed formation,
particularly where the strata dip inward, on all sides,
toward a center; -- especially applied to the coal
formations, called coal basins or coal fields.
coal basins Coal Coal, n. [AS. col; akin to D. kool, OHG. chol, cholo, G.
kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to
burn. Cf. Kiln, Collier.]
1. A thoroughly charred, and extinguished or still ignited,
fragment from wood or other combustible substance;
charcoal.
2. (Min.) A black, or brownish black, solid, combustible
substance, dug from beds or veins in the earth to be used
for fuel, and consisting, like charcoal, mainly of carbon,
but more compact, and often affording, when heated, a
large amount of volatile matter.
Note: This word is often used adjectively, or as the first
part of self-explaining compounds; as, coal-black; coal
formation; coal scuttle; coal ship. etc.
Note: In England the plural coals is used, for the broken
mineral coal burned in grates, etc.; as, to put coals
on the fire. In the United States the singular in a
collective sense is the customary usage; as, a hod of
coal.
Age of coal plants. See Age of Acrogens, under Acrogen.
Anthracite or Glance coal. See Anthracite.
Bituminous coal. See under Bituminous.
Blind coal. See under Blind.
Brown coal, or Lignite. See Lignite.
Caking coal, a bituminous coal, which softens and becomes
pasty or semi-viscid when heated. On increasing the heat,
the volatile products are driven off, and a coherent,
grayish black, cellular mass of coke is left.
Cannel coal, a very compact bituminous coal, of fine
texture and dull luster. See Cannel coal.
Coal bed (Geol.), a layer or stratum of mineral coal.
Coal breaker, a structure including machines and machinery
adapted for crushing, cleansing, and assorting coal.
Coal field (Geol.), a region in which deposits of coal
occur. Such regions have often a basinlike structure, and
are hence called coal basins. See Basin.
Coal gas, a variety of carbureted hydrogen, procured from
bituminous coal, used in lighting streets, houses, etc.,
and for cooking and heating.
Coal heaver, a man employed in carrying coal, and esp. in
putting it in, and discharging it from, ships.
Coal measures. (Geol.)
(a) Strata of coal with the attendant rocks.
(b) A subdivision of the carboniferous formation, between
the millstone grit below and the Permian formation
above, and including nearly all the workable coal beds
of the world.
Coal oil, a general name for mineral oils; petroleum.
Coal plant (Geol.), one of the remains or impressions of
plants found in the strata of the coal formation.
Coal tar. See in the Vocabulary.
To haul over the coals, to call to account; to scold or
censure. [Colloq.]
Wood coal. See Lignite.
