There are 13 words that start with 'mollu'.
| mollusc | mollusk |
| mollusca | molluscs |
| mollusks | molluscan |
| molluscum | molluskan |
| molluscans | molluskans |
| molluscicide | molluscicidal |
| molluscicides | |
Note: These 13 words that start with 'mollu' are found from the USA & Canada version of the tournament Scrabble word list.