There are 11 words that start with 'proteo'.
| proteome | proteose |
| proteomes | proteomic |
| proteoses | proteolyses |
| proteolysis | proteolytic |
| proteoglycan | proteoglycans |
| proteolytically | |
Note: These 11 words that start with 'proteo' are found from the USA & Canada version of the tournament Scrabble word list.