There are 19 words that start with 'medica'.
| medical | medicaid | 
| medicals | medicant | 
| medicare | medicate | 
| medicable | medicaids | 
| medically | medicants | 
| medicares | medicated | 
| medicates | medicament | 
| medicating | medication | 
| medicaments | medications | 
| medicamentous | |
Note: These 19 words that start with 'medica' are found from the USA & Canada version of the tournament Scrabble word list.