coral meaning
EN
[ˈkɒɹəl] [ˈkɔɹəl] [-ɒɹəl] WCoral
- Corals are marine invertebrates in the class Anthozoa of phylum Cnidaria. They typically live in compact colonies of many identical individual polyps.
- A coral "head" is a colony of myriad genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in length. A set of tentacles surround a central mouth opening.
- Although some corals can catch small fish and plankton, using stinging cells on their tentacles,
- Other corals do not rely on zooxanthellae and can live in much deeper water, with the cold-water genus Lophelia surviving as deep as 3,000 metres (9,800 ft). Some have been found on the Darwin Mounds, north-west of Cape Wrath, Scotland.
EN Coral 
- NounPLcoralsPREcor-
- (uncountable) A hard substance made of the limestone skeletons of marine polyps.
- (countable) A colony of marine polyps.
- (countable) A somewhat yellowish pink colour, the colour of red coral.
- coral colour:
- The ovaries of a cooked lobster; so called from their colour.
- (historical) A piece of coral, usually fitted with small bells and other appurtenances, used by children as a plaything.
- (uncountable) A hard substance made of the limestone skeletons of marine polyps.
- Adjective
- More Examples
- Used in the Middle of Sentence
- There was another big piece of coral that he later on made into a bowguard.
- Species living in the Mediterranean, Atlantic, and Northern Sea had similar encephalisation indices compared to the indopacific coral reef dwelling species.
- Finally, coral reef POM constitutes a source of OM for planktonic invertebrates and planktonophagous fish.
- Used in the Beginning of Sentence
- Coral bleaching threatens to disrupt the population equilibria of the reef’s fishes.
- Used in the Middle of Sentence
Definition of coral in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Uncomparable adjectives
- Uncomparable adjectives
- Nouns
- Countable nouns
- Singularia tantum
- Uncountable nouns
- Uncountable nouns
- Countable nouns
- Adjectives
Source: Wiktionary
Grammatically, this word "coral" is an adjective, more specifically, an uncomparable adjective. It's also a noun, more specifically, a countable noun and a singularia tantum.