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:
The rate at which cells take up identifiable chemicals that they use in cell division. The index is a measure of the rate of the reproduction of the cells, as in fetal tissue development or the growth of cancers.