There are 14 words that start with 'oxida'.
| oxidant | oxidase | oxidate | 
| oxidable | oxidants | oxidases | 
| oxidasic | oxidated | oxidates | 
| oxidating | oxidation | oxidative | 
| oxidations | oxidatively | |
Note: These 14 words that start with 'oxida' are found from the USA & Canada version of the tournament Scrabble word list.