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 saline (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 Iwasaki, at Yale, developed a nasal spray consisting of the spike protein in a saline suspension - a strategy that wouldn’t work as a first-round vaccination but could be powerful as a booster. Carolyn Y. Johnson, Anchorage Daily News, 11 Apr. 2022 The lake’s saline water also wreaked havoc on cameras and water chemistry gadgets Footen uses. Leia Larsen, The Salt Lake Tribune, 10 Apr. 2022 Those materials are needed to make saline bags and syringes to administer the fluid. Anna Edney, Fortune, 4 Mar. 2022 Mild allergic reactions can usually be treated on your own, either with home remedies (think saline nasal rinses or cool compresses) or OTC meds like antihistamines or hydrocortisone cream. Marygrace Taylor, SELF, 29 Mar. 2022 Brander noted that the team also recreated the experiments with different levels of salinity and found that more saline water tended to increase the amount of the particles the organisms ingested. Doug Johnson, Ars Technica, 7 Mar. 2022 The lagoons are pink due to the algae, plankton, and shrimp that live in this super-saline solution. Meagan Drillinger, Travel + Leisure, 21 Feb. 2022 Congress is considering boosting the credit for collecting carbon emissions from smokestacks by 70% to $85 for a metric ton if the carbon is stashed in saline geologic formations, or $60 if it is sent down oil wells. Jennifer Hiller, WSJ, 7 Feb. 2022 But the ponds have become sources of saline water only. Cecilia Rodriguez, Forbes, 15 Nov. 2021 Recent Examples on the Web: Noun After getting settled at AHS, Hera received treatment for her burns, including laser therapy, honey bandages, wound cleanings with saline, and several medications to prevent infection. Vanessa Etienne,, 20 Sep. 2021 On the other hand, NCCIH finds that irrigating your nose with saline, using a neti pot or other rinsing device, may be helpful. Karen Pallarito,, 7 July 2021 The investigation showed that about 75% of all the fentanyl given to patients at Yale reproductive clinic from June to October in 2020 was adulterated with saline. Edmund H. Mahony,, 26 May 2021 Myers also recommends sterile saline solution, which tends to be recommended for most piercings. Gabi Thorne, Allure, 25 Apr. 2022 Ideally, the saline solution is poured or squirted into one nostril and comes out the other, experts said, which flushes out the nasal cavities. Washington Post, 22 Apr. 2022 Also not to be missed: its well-structured Grande Année Rosé 2014, with a bright saline character, along with pithy pink grapefruit, orange peel and some bing cherry notes. Lana Bortolot, Forbes, 22 Apr. 2022 The procedure involves placing implants filled with saline or silicone behind the breast tissue or under the chest muscle, according to the National Library of Medicine. Ashley Abramson, SELF, 11 Apr. 2022 Unlike the vast saline lake, Utah Lake provided a seemingly inexhaustible source of food and water, and people lived and worked on its shores. Brian Maffly, The Salt Lake Tribune, 31 Mar. 2022 See More

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

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

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Dictionary Entries Near saline



saline dome

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Last Updated

24 Apr 2022

Cite this Entry

“Saline.” Dictionary, Merriam-Webster, Accessed 21 May. 2022.

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More Definitions for saline


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

More from Merriam-Webster on saline

Nglish: Translation of saline for Spanish Speakers

Britannica English: Translation of saline for Arabic Speakers


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