orthosilicate
noun
or·tho·silicate
| \ ¦ȯ(r)(ˌ)thō+\
Definition of orthosilicate
: a silicate containing the group SiO4 in which the ratio of silicon to oxygen is 1 to 4 : a salt or ester (as ethyl silicate) of orthosilicic acid : nesosilicate
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