The worldâs coral reefs will quickly dissolve if greenhouse gas emissions continue on current trends, a new simulation hasâ¦
noun, plural indexes, indices. [in-duh-seez] /ËÉªn dÉËsiz/ (Show IPA) 1. (in a nonfiction book, monograph, etc.) a more or less detailed alphabetical listing of names, places, and topics along with the numbers of the pages on which they are mentioned or discussed, usually included in or constituting the back matter.
Wiktionary (0.00 / 0 votes) Rate this definition: index (Noun). An alphabetical listing of items and their location; for example, the index of a book lists words or expressions and the pages of the book upon which they are to be found. index (Noun). The index finger, the forefinger, or other pointer.