There are 5 15-letter words that start with 'deca'.
| decalcification | decarboxylating |
| decarboxylation | decarburization |
| decasualization | |
Note: These 5 15-letter words that start with 'deca' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with decar, decal, decap, decam, decan, decad, decay, decag, decas, decat, decaf, decah.
5-letter words start with 'deca' (3)