01 n. A place where water boils up; a spring that wells forth.
pl.
Estuaries ((#))
-
1.
A place where water boils up; a spring that wells forth.[Obs.]
-
2.
A passage, as the mouth of a river or lake, where the tide meets the current; an arm of the sea; a frith.“it to the sea was often by long and wide estuaries.” — Dana.