reef builders

pl. Zool .: A popular name for those corals by which coral reefs are formed. [CORAL-REEF.] "Even within the coral-zone the distribution of the reef-builders appears to be singularly capricious." Huxley: Anat. Invert., p. 167. reef-building, a. A term applied to those corals by which coral reefs are formed. (Nicholson: Palæont., i. 187.)