coral-line

coralline

[kawr-uh-lin, -lahyn, kor-]
adjective
1.
composed of coral or having the structure of coral: coralline limestone.
3.
coral-colored; reddish-yellow; light yellowish-red; pinkish-yellow.
noun
4.
any red algae impregnated with lime.
5.
any of various corallike animals or calcareous algae.

Origin:
1535–45; < Late Latin corallīnus coral red. See coral, -ine1

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World English Dictionary
coralline (ˈkɒrəˌlaɪn)
 
adj
1.  Also: coralloid of, relating to, or resembling coral
2.  of the colour of coral
 
n
3.  any of various red algae impregnated with calcium carbonate, esp any of the genus Corallina
4.  any of various animals that resemble coral, such as certain sponges
 
[C16: from Late Latin corallīnus coral red, from Latin corālliumcoral]

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