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n. pl. tsu·na·mis or tsunami
A very large ocean wave caused by an underwater earthquake or volcanic eruption.

[Japanese : tsu, harbor + nami, wave (so called because tsunamis generally pass unnoticed on the open sea, causing a slight swell, but rise to cause damage in the shallow waters of harbors ).]

tsu·na′mic (-mĭk) adj.


(Physical Geography) belonging or relating to a tsunami, or like a tsunami
References in periodicals archive ?
Some mechanisms commenced as expected but got slowed down later by the tsunamic change of cabinet in Juba in July 2013 and the resultant outbreak of mid-December 2013 crisis of the deadly SPLM/A's leadership struggle.
The minority communities need not feel threatened or feel cowed down by this tsunamic wave of minority baiting for instant advantage.
Three years ago, they founded the Seniors Real Estate Institute (SREI), which quickly grew into a multifaceted education and advocacy organization that offers targeted training and support for REALTORS[R] who recognize the tsunamic demographic shifts toward an aging population and have a passion for serving seniors.
As he said, even when the rest of my group disagreed with the other person, they would side against me because of the tsunamic level of my response.