| 释义 |
ba·sin
I. \ˈbāsən\ noun
(-s)
Etymology: Middle English basin, from Old French bacin, from Late Latin bacchinon, from (assumed) Vulgar Latin bacca water vessel, perhaps of non-Indo-European origin; akin to the source of Latin baca berry — more at bay
1.
a. : an open usually circular vessel or dish with sloping or curving sides and wider than its depth used typically for holding water for washing
b. : a container of similar shape: as
(1) : the scalepan of a balance
(2) : a tank or reservoir used for the treatment of liquids
c. : the quantity contained in a basin
2.
a.
(1) : a dock built in a tidal river or harbor and used especially for ships discharging or loading cargo, floodgates serving to keep the water level constant
< constructing ships in basins resembling drydocks from which they float out on completion — Time >
(2) : a part of a river or canal widened and provided with wharves
b.
(1) : a water area enclosed or partly enclosed by land and suitable for anchorage of ships : a landlocked harbor : a little bay
< a basin … provides mooring space for eighty yachts — American Guide Series: Maryland >
(2) : a water area artificially enclosed or partly enclosed (as by jetties) that is designed to shelter small craft
< rates for mooring boats at boat basins — New York Herald Tribune >
3.
a.
(1) : a large or small depression in the surface of the land, the lowest part often being occupied by a lake or pond
< the basin of Lake Michigan >
(2) : a similar depression in the ocean floor
< some 2000 fathoms down, but it still separates broad eastern and western basins — R.E.Coker >
b. : an area that does not drain to the ocean
c. : an area largely enclosed by higher lands but having an outlet and being drained
< the Big Horn basin >
d. : the entire tract of country drained by a river and its tributaries — called also river basin
< appropriations for flood control in the Missouri basin — New Republic >
e. : a great depression in the surface of the lithosphere occupied by an ocean
< the basin now filled by the Pacific ocean — Waldemar Kaempffert >
— called also ocean basin
4.
a. : a broad area of the earth beneath which the strata dip usually from the sides toward the center
< the Richmond coal basin >
— called also structural basin, synclinal basin
b. : a depression of the earth in which sedimentary materials accumulate or have accumulated usually characterized by continuous deposition over a long period of time
< a salt basin >
c. : rocks of such composition and having such structural and topographic relations as to facilitate the presence of artesian water
< an artesian basin >
5. : the depression at the apex of an apple or similar fruit
6.
a. : an area enclosed so as to be flooded for subsequent cultivation
< a basin for irrigation >
b. : a hollow or enclosure made about the base of a tree to receive water for moistening the roots
c. : a small depression or pocket made (as with a basin lister) in a field to check water runoff
II. verb
(basined ; basined ; basining \-s(ə)niŋ\ ; basins)
transitive verb
: to bend down (a part of the earth's crust) in the form of a basin
< the rocky surface of Greenland is actually basined as if by the weight of the existing icecap — R.A.Daly >
intransitive verb
: to form a basin by erosion |