'tidal bore' definitions:

Definition of 'tidal bore'

From: WordNet
noun
A high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary) [syn: tidal bore, bore, eagre, aegir, eager]

Definition of 'tidal bore'

From: GCIDE
  • Eagre \Ea"gre\, n. [AS. e['a]gor, ?gor, in comp., water, sea, e['a]gor-stre['a]m water stream, sea.] A wave, or two or three successive waves, of great height and violence, at flood tide moving up an estuary or river; -- commonly called the bore or tidal bore. See Bore. Ealderman