World English Dictionary
-ide or -id
suffix forming nouns
1.  (added to the combining form of the nonmetallic or electronegative elements) indicating a binary compound: sodium chloride
2.  indicating an organic compound derived from another: acetanilide
3.  indicating one of a class of compounds or elements: peptide; lanthanide
[from German -id, from French oxideoxide, based on the suffix of acideacid]
-id or -id
suffix forming nouns
[from German -id, from French oxideoxide, based on the suffix of acideacid]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

-ide suff.

  1. Group of related chemical compounds: monosaccharide.

  2. Binary compound: sodium chloride.

  3. Chemical element with properties similar to another: lanthanide.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
A suffix used to form the names of various chemical compounds, especially the second part of the name of a compound that has two members (such as sodium chloride) or the name of a general type of compound (such as polysaccharide).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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