There are 8 13-letter words that start with 'carb'.
| carbohydrases | carbohydrates |
| carboniferous | carbonization |
| carbonylation | carboxylating |
| carboxylation | carburization |
Note: These 8 13-letter words that start with 'carb' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with carbo, carbu, carba, carbi, carbs.
5-letter words start with 'carb' (2)