As if the oceans needed more terrible news, scientists have learned that the coral reefs surrounding the Florida Keys are dissolving. The culpritâocean acidificationâwasnât expected to start hitting reefs hard for another three decades.
index noun (LIST) C1 [ C ] an alphabetical list, such as one printed at the back of a book showing which page a subject, name, etc. is on: Try looking up heart disease in the index. âº [ C ] a collection of information stored on a computer or on a set of cards, in alphabetical order:
Composite Index. Share. What is a 'Composite Index'. A composite index is a grouping of equities, indexes or other factors combined in a standardized way, providing a useful statistical measure of overall market or sector performance over time, and it is also known simply as a composite..