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lifeblood

American  
[lahyf-bluhd] / ˈlaɪfˌblʌd /

noun

  1. the blood, considered as essential to maintain life.

    to spill one's lifeblood in war.

  2. a life-giving, vital, or animating element.

    Agriculture is the lifeblood of the country.


lifeblood British  
/ ˈlaɪfˌblʌd /

noun

  1. the blood, considered as vital to sustain life

  2. the essential or animating force

"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

Etymology

Origin of lifeblood

First recorded in 1580–90; life + blood

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Theatrical windows used to be the lifeblood of independent film, and now it’s basically gone,” said David Offenberg, an associate professor of finance at Loyola Marymount University and author of the book “Independent Film Finance.”

From Los Angeles Times

Motorcycle couriers zipping in and out, the lifeblood of the Park.

From Literature

These deposits are the lifeblood of the economy, especially in areas outside major cities, where local banks use them to finance loans to individuals, small businesses and farmers.

From Barron's

"Football was his lifeblood," said Jordan, noting that after the Bradford fire, Yorath attended the funerals of all those who died.

From BBC

And in an era where football broadcast revenue is the lifeblood of college sports—particularly as teams spend millions on their rosters—that growing gap has become the true measure of the business.

From The Wall Street Journal