What is the binomial nomenclature of monkey?

You can't give a single binomial nomenclature for "monkey" because it's not a single species. It's a broad category encompassing over 260 different species within the infraorder Simiiformes.

To give a binomial nomenclature, you need to specify the genus and species of the particular monkey you're interested in. For example:

* Common chimpanzee: *Pan troglodytes*

* Rhesus macaque: *Macaca mulatta*

* Capuchin monkey: *Cebus capucinus*

So, to get the binomial nomenclature for a specific monkey, you'll need to tell me which species you're asking about.