Also called double tide. Oceanography.
- a high tide in which the water rises to a certain level, recedes, then rises again.
- a low tide in which the water recedes to a certain level, rises slightly, then recedes again.
(in ancient Roman building) an earthen mound or rampart, especially one having no revetment.
Origin of agger
1350–1400; Middle English: heap, pile < Latin: rubble, mound, rampart, equivalent to ag- ag- + -ger, base of gerere to carry, bring
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Australian slang aggressive
an earthwork or mound forming a rampart, esp in a Roman military camp
Word Origin for agger
C14: from Latin agger a heap, from ad- to + gerere to carry, bring
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012