cor·​al·​line | \ ˈkȯr-ə-ˌlīn How to pronounce coralline (audio) , ˈkär- \

Definition of coralline

 (Entry 1 of 2)

1 : a coralline red alga
2 : a bryozoan or hydroid that resembles a coral



Definition of coralline (Entry 2 of 2)

1 : of, relating to, or resembling coral
2 : of, relating to, or being any of a family (Corallinaceae) of calcareous red algae

Examples of coralline in a Sentence

Recent Examples on the Web: Noun The Chagossians took a launch to Île du Coin, where three of the group had been born, and waded onto the smooth, coralline sand. Cullen Murphy, The Atlantic, 15 June 2022 Each monument had a different articulation and construction, and the exteriors were often hard coralline limestone, while softer globigerina limestone use used for a more delicate and ornate interior. Tim Newcomb, Popular Mechanics, 8 Apr. 2021 The three largest islands are the sandy isthmus of Lamu itself, the coralline Manda, and the mysterious Pate, which is only accessible at high tide. Peter Browne, Condé Nast Traveler, 25 Mar. 2021 The researchers who conducted this study suggest that their new results might show a larger impact because of the presence of crustose coralline algae in the ecosystem, which can alter the balance of carbonate ions. Diana Gitig, Ars Technica, 16 Mar. 2018 Adey’s initial work with corallines was establishing worldwide diversity. Wendy Mitman Clarke, Smithsonian, 8 Mar. 2017 Adey’s initial work with corallines was establishing worldwide diversity. Wendy Mitman Clarke, Smithsonian, 8 Mar. 2017 See More

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

First Known Use of coralline


1543, in the meaning defined at sense 1


circa 1633, in the meaning defined at sense 1

History and Etymology for coralline


French, from feminine of corallin coral-like, from Middle French, from Late Latin corallinus, from Latin corallium

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The first known use of coralline was in 1543

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Dictionary Entries Near coralline



coralline limestone

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Last Updated

23 Jun 2022

Cite this Entry

“Coralline.” Dictionary, Merriam-Webster, Accessed 11 Aug. 2022.

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