There are 10 words that start with 'hemoc'.
| hemocoel | hemocyte | 
| hemocoels | hemocytes | 
| hemocyanin | hemocyanins | 
| hemocytometer | hemocytometers | 
| hemochromatoses | hemochromatosis | 
Note: These 10 words that start with 'hemoc' are found from the USA & Canada version of the tournament Scrabble word list.