'aestuary' definitions:

Definition of 'aestuary'

From: GCIDE
  • Estuary \Es"tu*a*ry\, n.; pl. Estuaries. [L. aestuarium, from aestuare to surge. See Estuate.] [Written also [ae]stuary.]
  • 1. A place where water boils up; a spring that wells forth. [Obs.] --Boyle. [1913 Webster]
  • 2. A passage, as the mouth of a river or lake, where the tide meets the current; an arm of the sea; a frith. [1913 Webster]
  • it to the sea was often by long and wide estuaries. --Dana. [1913 Webster]