Definition of "clarion call" []

• Appeal, urgent call to action. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Wherefore, when the clarion call of the North rang on his ear, he conceived an adventure in eggs and bent all his energy to its achievement."
• "An RFA is a kind of clarion call from NIH that asks researchers to submit grant proposals in a specific area in need of more investigation—in this case the RFA is, should it ever get approval and difficult-to-find funding, to be used for researching autoimmune disease and environmental triggers more deeply."
• "The hard, cold facts remind me that it was unbending idealists like William Lloyd Garrison who first sounded the clarion call for justice; that it was slaves and former slaves, men like Denmark Vesey and Frederick Douglass and women like Harriet Tubman, who recognized power would concede nothing without a fight."