Countable Nouns Starting with OP and Containing NO

Browse 5 valid English countable nouns starting with OP and containing NO, from Opisthotonos, Ophthalmodiagnosis, Ophthalmocarcinoma, Ophthalmotonometer and Oppignoration to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with OPH
3 words
ophthalmodiagnosis
ophthalmocarcinoma
ophthalmotonometer
Starts with OPI
1 words
opisthotonos
Starts with OPP
1 words
oppignoration

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