basin
nounDefinition of basin
1a
: an open usually circular vessel with sloping or curving sides used typically for holding water for washing
a new washstand and basin
b
chiefly British
: a bowl used especially in cooking
c
: the quantity contained in a basin
spilled a basin of water on the floor
2a
: a dock built in a harbor or a river that is noticeably affected by the tide
b
: an enclosed or partly enclosed water area
3 geography
a
: a large or small depression in the surface of the land or in the ocean floor
the relatively shallow basin of the Baltic Sea
b
: the entire tract of country drained by a river and its tributaries
flooding in the Amazon river basin
c
: a great depression in the surface of the lithosphere occupied by an ocean
4
geology
: a broad area of the earth beneath which the strata (see stratum sense 2a) dip usually from the sides toward the center
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