Coralline means 'resembling coral' and may refer to:

• Coralline algae, or corallines, red algae that produce calcareous deposits
• Less commonly, organisms that resemble coral, such as certain bryozoans, hydrozoans, or coralline sponges
• The calcareous material in coral reefs
• Coralline rock, produced by coralline algae
• Something having a red coral colour

See also

• Coraline (disambiguation)

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