There are 12 words that start with 'sedim'.
| sediment | sediments |
| sedimented | sedimentary |
| sedimenting | sedimentable |
| sedimentation | sedimentology |
| sedimentations | sedimentologic |
| sedimentologies | sedimentologist |
Note: These 12 words that start with 'sedim' are found from the USA & Canada version of the tournament Scrabble word list.