sa·​line | \ ˈsā-ˌlēn How to pronounce saline (audio) , -ˌlīn \

Definition of saline

 (Entry 1 of 2)

1 : consisting of or containing salt a saline solution
2 : of, relating to, or resembling salt : salty a saline taste
3 : consisting of or relating to the salts of the alkali metals or of magnesium a saline cathartic



Definition of saline (Entry 2 of 2)

1 : a metallic salt especially : a salt of potassium, sodium, or magnesium with a cathartic action
2 : a saline solution especially : one isosmotic with body fluids

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Other Words from saline


salinity \ sā-​ˈli-​nə-​tē How to pronounce salinity (audio) , sə-​ \ noun

Synonyms & Antonyms for saline

Synonyms: Adjective

Antonyms: Adjective

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Examples of saline in a Sentence

Recent Examples on the Web: Adjective The pivots look as out of place as the green alfalfa once did next to the red dirt from the dry saline lake., "These 7 industrial farm operations are draining Arizona's aquifers, and no one knows exactly how much they're taking," 5 Dec. 2019 Simple saline sprays or drops can literally wash the pollen out of your nostrils and eyes. Marisa Cohen, Good Housekeeping, "How to Get Relief From Fall Allergies, According to an Allergist," 19 June 2019 According to the US National Library of Medicine, one variation of the test involves swabbing the inside of a patient's nose and throat; another involves injecting a saline solution into the nose and then removing the sample with a suction. Leah Groth,, "Lizzo Just Shared Video of Her Rapid Flu Test on Instagram—But What Is That?," 17 Dec. 2019 The team then conducted a final experiment, dosing mice with either the mutant bacteria or a saline solution before reinfecting them with normal group A strep three weeks later. Katherine J. Wu, Smithsonian, "Harmful Bacteria Masquerade as Red Blood Cells to Evade the Immune System," 3 Dec. 2019 By the following week, both lay in hospital beds surrounded by stuffed animals and saline drips., "For two of EEE’s youngest victims, ages 5 and 6, the battle against the devastating virus goes on," 28 Sep. 2019 Some of the hyper acidic and saline pools have negative pH values. Ashley Strickland, CNN, "This is one place on Earth where no life can exist," 22 Nov. 2019 The Roswell Daily Record reported Wednesday that the U.S. Department of Interior built the industrial site in 1962 or 1963 and used it as a saline water testing plant before its 1984 closure. USA TODAY, "Guitar hotel, creepy dolls, slime museum: News from around our 50 states," 25 Oct. 2019 The devices have a silicone outer shell and are filled with either saline or silicone. NBC News, "FDA wants stronger warning on breast implants about risks," 23 Oct. 2019 Recent Examples on the Web: Noun Breast reconstruction can be done using saline or silicone implants as well as using a person's own tissue (say, from the abdomen). Adele Jackson-gibson, Good Housekeeping, "13 Facts to Know If You're Considering a Double Mastectomy," 25 Sep. 2019 The frozen sheets are thawed in a warm bath of saline before use on a patient, when they are stapled, sutured or glued on, Dr. Shahrokhi said. Roni Caryn Rabin, New York Times, "New Zealand Seeks Human Skin to Treat Volcano Burn Victims," 12 Dec. 2019 Then, the researchers quickly gave the participants either an infusion of saline or an infusion of ketamine. Megan Thielking, STAT, "With the help of ketamine, researchers rewrite memories in a bid to curb harmful drinking," 26 Nov. 2019 The world was likely dotted with saline lakes clinging on during a time of atmospheric loss and may have been some of the last surface waters on Mars. John Wenz, Popular Mechanics, "We Now Have a Good Idea When Martian Oceans Started Dying," 7 Oct. 2019 While winning the 1982 Boston Marathon, Salazar refused water on the course, and then rushed to the emergency room for six liters of saline. oregonlive, "Running icon Alberto Salazar’s fall from grace stirs strong emotions across track and field," 5 Oct. 2019 The two liters of saline, which the ER billed at $700, are available at Walmart for $10.99 a liter. Kaiser Health News, The Denver Post, "Which was worse: This Colorado man’s bachelor party hangover or the hangover from his $12,460 ER bill?," 19 Sep. 2019 The marrow, diluted in saline, was then dripped into Nancy’s bloodstream. Siddhartha Mukherjee, The New Yorker, "The Promise and Price of Cellular Therapies," 15 July 2019 Rats then either received doses of CBD or saline directly into an artery in the knee joint. Sarah Jacoby, SELF, "Do Topical CBD Products Actually Do Anything for Pain?," 19 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'saline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of saline


15th century, in the meaning defined at sense 1


1662, in the meaning defined at sense 1

History and Etymology for saline


Middle English, from Anglo-French salin, from Latin salinus, from sal salt — more at salt

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Time Traveler for saline

Time Traveler

The first known use of saline was in the 15th century

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Statistics for saline

Last Updated

14 Jan 2020

Cite this Entry

“Saline.” The Dictionary, Merriam-Webster Inc., Accessed 18 January 2020.

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More Definitions for saline


How to pronounce saline (audio)

English Language Learners Definition of saline

 (Entry 1 of 2)

technical : containing salt



English Language Learners Definition of saline (Entry 2 of 2)

technical : a mixture of salt and water


sa·​line | \ ˈsā-ˌlēn How to pronounce saline (audio) , -ˌlīn How to pronounce saline (audio) \

Medical Definition of saline

 (Entry 1 of 2)

1 : consisting of or containing salt a saline solution
2 : of, relating to, or resembling salt : salty a saline taste
3 : consisting of or relating to the salts especially of lithium, sodium, potassium, and magnesium a saline cathartic
4 : relating to or being abortion induced by the injection of a highly concentrated saline solution into the amniotic sac saline amniocentesis



Medical Definition of saline (Entry 2 of 2)

1a : a metallic salt especially : a salt of potassium, sodium, or magnesium with a cathartic action
b : an aqueous solution of one or more such salts
2 : a saline solution used in physiology especially : physiological saline

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More from Merriam-Webster on saline

Thesaurus: All synonyms and antonyms for saline

Rhyming Dictionary: Words that rhyme with saline

Spanish Central: Translation of saline

Nglish: Translation of saline for Spanish Speakers

Britannica English: Translation of saline for Arabic Speakers

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