- (of a singularity of a function of a complex variable) noting that the Laurent series at the point has an infinite number of terms with negative powers.
- (of a discontinuity) noting that the function is discontinuous and has no limit at the point.Compare removable(def 2).
Origin of essential
Synonyms for essential
Antonyms for essential
Related Words for essentialnecessary, indispensable, crucial, needed, imperative, fundamental, main, constitutional, elemental, underlying, key, inherent, intrinsic, absolute, precondition, essence, requirement, element, condition, requisite
Examples from the Web for essential
Contemporary Examples of essential
But Winning Marriage will be essential for the historian who, someday, tries to tell the full story.The Real Story Behind the Fight for Marriage Equality
December 30, 2014
Law is essential to freedom because it safeguards citizens against misconduct and abuse.Red Tape Is Strangling Good Samaritans
Philip K. Howard
December 27, 2014
Dana Rubenstein of The New York Observer wrote that “essential to the experience was segregation.”I Watched a Casino Kill Itself: The Awful Last Nights of Atlantic City’s Taj Mahal
December 8, 2014
Young Living traffics in essential oils designed to help relax and rejuvenate.
A simple look around the Internet finds much to worry about in the world of essential oils.
Historical Examples of essential
It is viewed in some of them as an essential prop to existing governments.
I cannot perceive that our own comprehension of it is at all essential to the matter.The Hall of Fantasy (From "Mosses From An Old Manse")
It is a test of our courage—of our resolve—of our wisdom—our essential democracy.
My "job" could not be "swung" by anyone else, since everyone else is essential to the swinging of his own.
Built on fear and run by fear, fear is as essential to their existence as coal to our industries.
mid-14c., "that is such by its essence," from Late Latin essentialis, from essentia (see essence). Meaning "pertaining to essence" is from late 14c., that of "constituting the essence of something" is from 1540s; that of "necessary" is from 1520s. Essentials "indispensable elements" is from early 16c. Related: Essentially.