There are 12 words that start with 'macer'.
| macer | macers | macerate | 
| macerated | macerater | macerates | 
| macerator | maceraters | macerating | 
| maceration | macerators | macerations | 
Note: These 12 words that start with 'macer' are found from the USA & Canada version of the tournament Scrabble word list.