cor·al·line
ˈkȯr-ə-ˌlīn 
ˈkär-
1
: a coralline red alga
2
: a bryozoan or hydroid that resembles a coral
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
Jenny Lehmann, Discover Magazine, 16 May 2025
The Maldives Best for: Romance, castaway vibes, and overwater excess
Dotted across an astoundingly blue Indian Ocean is Asia’s smallest country, an archipelago of 1,192 coralline islets, only 200 of which are inhabited.
—Paul Rubio, AFAR Media, 23 Dec. 2024
The outside is made from coralline limestone, and the internal walls are globigerina limestone.
—Emilie Le Beau Lucchesi, Discover Magazine, 9 Apr. 2024
This small island in the southern Philippines is known for its unique pink coralline sand.
—Steven Casale, Travel + Leisure, 3 Apr. 2023
As a part of its project in Mexico, Reefy is testing a similar paint, this one aimed at coralline algae.
—WIRED, 28 Mar. 2023
There are other species which act as calcifiers, adding to the carbonate foundation (such as crustose coralline algae).
—Christie Wilcox, Discover Magazine, 1 May 2016
Underwater, a calcified algae called crustose coralline algae in a lighter shade of red helps promote coral reef formation.
—Outside Online, 4 Mar. 2022
Ritson-Williams has found that while larvae like to settle near some species of coralline algae, other species inhibit larval growth.
—Michelle Nijhuis, Discover Magazine, 12 Oct. 2018
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Noun
Coral larvae float through the ocean, guided by chemical signals released by algae, like the crustose coralline algae, which give clues about the surrounding reef’s health and potential.
—Jenny Lehmann, Discover Magazine, 16 May 2025
The Maldives Best for: Romance, castaway vibes, and overwater excess
Dotted across an astoundingly blue Indian Ocean is Asia’s smallest country, an archipelago of 1,192 coralline islets, only 200 of which are inhabited.
—Paul Rubio, AFAR Media, 23 Dec. 2024
The outside is made from coralline limestone, and the internal walls are globigerina limestone.
—Emilie Le Beau Lucchesi, Discover Magazine, 9 Apr. 2024
This small island in the southern Philippines is known for its unique pink coralline sand.
—Steven Casale, Travel + Leisure, 3 Apr. 2023
As a part of its project in Mexico, Reefy is testing a similar paint, this one aimed at coralline algae.
—WIRED, 28 Mar. 2023
There are other species which act as calcifiers, adding to the carbonate foundation (such as crustose coralline algae).
—Christie Wilcox, Discover Magazine, 1 May 2016
Underwater, a calcified algae called crustose coralline algae in a lighter shade of red helps promote coral reef formation.
—Outside Online, 4 Mar. 2022
Ritson-Williams has found that while larvae like to settle near some species of coralline algae, other species inhibit larval growth.
—Michelle Nijhuis, Discover Magazine, 12 Oct. 2018
Cite this Entry
“Coralline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coralline. Accessed 15 Jul. 2025.
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