oside
1 of 2noun
ˈōˌsīd,
ˈōsə̇d
plural -s
: glycoside
-oside
2 of 2noun suffix
-o·side
ōˌsīd;
əˌsīd,
əsə̇d
plural -s
: glycoside or similar compound
ganglioside
heteroside
compare -ide sense 2b 
Word History
Etymology
Noun
International Scientific Vocabulary, from -oside
Noun suffix
International Scientific Vocabulary -ose entry 2 + -ide