Definition of Killer

1. Noun. Someone who causes the death of a person or animal.


2. Noun. The causal agent resulting in death. "Heart disease is the biggest killer in the United States"
Exact synonyms: Cause Of Death
Generic synonyms: Causal Agency, Causal Agent, Cause
Derivative terms: Kill, Kill

3. Noun. A difficulty that is hard to deal with. "That exam was a real killer"
Generic synonyms: Difficulty
Derivative terms: Kill

4. Noun. Predatory black-and-white toothed whale with large dorsal fin; common in cold seas.
Exact synonyms: Grampus, Killer Whale, Orca, Orcinus Orca, Sea Wolf
Generic synonyms: Dolphin
Group relationships: Genus Orcinus, Orcinus

Definition of Killer

1. n. One who deprives of life; one who, or that which, kills.

Definition of Killer

1. Noun. That which kills. ¹

2. Noun. (figuratively) That which causes stress or is extremely difficult, especially that which may cause failure at a task. ¹

3. Noun. (figuratively) Something that is so far ahead of its competition that it effectively kills off that competition. ¹

4. Noun. (sports) A knockout form of darts involving several players ¹

5. Noun. A diacritic mark used in Indic scripts to suppress an inherent vowel (e.g., the Hindi viram, the Bengali or Oriya hasanta) or render the entire syllable silent (e.g., the Burmese virama, the Khmer toandakhiat). ¹

6. Adjective. (slang) Excellent, very good. ¹

¹ Source: wiktionary.com

Definition of Killer

1. one that kills [n -S] - See also: kills

Medical Definition of Killer

1. 1. One who deprives of life; one who, or that which, kills. 2. A voracious, toothed whale of the genus Orca, of which several species are known. The killers have a high dorsal fin, and powerful jaws armed with large, sharp teeth. They capture, and swallow entire, large numbers of seals, porpoises, and dolphins, and are celebrated for their savage, combined attacks upon the right whales, which they are said to mutilate and kill. The common Atlantic species (Orca gladiator), is found both on the European and the American coast. Two species (Orca ater and O. Rectipinna) occur on the Pacific coast. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Killer

killbot
killbots
killcow
killcows
killcrop
killcrops
killdee
killdeer
killdeer plover
killdeers
killdees
killed
killed in action
killed time
killed two birds with one stone
killer (current term)
killer T-cell
killer T cell
killer T cells
killer app
killer application
killer applications
killer apps
killer bee
killer bees
killer cancel
killer cancels
killer cell
killer cells
killer game

Literary usage of Killer

Below you will find example usage of this term as found in modern and/or classical literature:

1. Understanding the Immune System by Lydia Woods Schindler (1991)
"killer cell makes contact with target cell, orients its weapons toward the target ... Natural killer Cells Natural killer (NK) cells are yet another type of ..."

2. Baptist Missionary Magazine by American Baptist Foreign Mission Society (1877)
"PAIN-killer will cure Dyspepsia and Indigestion, if used according to directions. ... PAIN-killer has proved itself a Soverign Remedy for Fever and Ague and ..."

3. Buddhist Legends by Buddhaghoṣa (1921)
"A cow-killer, angered at the failure of his wife to provide beef for his ... The cow-killer crawls about on his hands and knees, bellowing like an ox, ..."

4. The digital library: a biography by Daniel I. Greenstein, Suzanne E. Thorin (2002)
"The killer app was the silver-bullet solution that promised to propel the library into a networked age without undergoing the fundamental restructuring, ..."

5. Two Years in the Jungle: The Experiences of a Hunter and Naturalist in India by William Temple Hornaday (1885)
"The least harmful is the " game-killer," who lives in the hilla and ... He feeds chiefly upon deer and wild hog, and so long as he remains a game-killer ..."

6. Nostrums and Quackery: Articles on the Nostrum Evil and Quackery Reprinted by American Medical Association, Arthur Joseph Cramp (1912)
"... MICROBE killer A correspondent asks for information concerning ... Microbe killer," as he has a patient with cancer whose family are strongly urging the ..."

7. Nostrums and Quackery: Articles on the Nostrum Evil and Quackery Reprinted by American Medical Association (1912)
"... MICROBE killer A correspondent asks for information concerning ... Microbe killer," as he has a patient with cancer whose family are strongly urging the ..."

8. Publishers Weekly by Publishers' Board of Trade (U.S.), Book Trade Association of Philadelphia, American Book Trade Union, Am. Book Trade Association, R.R. Bowker Company (1922)
"GOLD-killer By John Prosper Ready in March Behind the surge and glitter of ... Gold-killer—rising excitement—love-making—a startlingly true picture of ..."

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