Definition of -ide in English:

-ide

Syllabification: -ide

suffix

Chemistry
1Forming nouns:
1.1Denoting binary compounds of a nonmetallic or more electronegative element or group: cyanide sodium chloride
1.2Denoting various other compounds: peptide saccharide
1.3Denoting elements of a series in the periodic table: lanthanide

Origin

originally used in oxide.

Definition of -ide in:

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Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous