corals is a form of:

Coral



noun
1.
(a hard red, pink, or Coral white substance, a piece of coral. -coral rag a limestone formation consisting of an abundance of petrified corals. -coral reef a reef containing mainly of corl and other hard organic petrified matter (mainly of coral)) ផ្កាថ្ម
ENGLISH MEANING
noun
1.
The hard parts or skeleton of various Anthozoa, and of a few Hydrozoa. Similar structures are also formed by some Bryozoa.
2.
The ovaries of a cooked lobster; -- so called from their color.
3.
A piece of coral, usually fitted with small bells and other appurtenances, used by children as a plaything.