There are 17 words that start with 'dend'.
| dendron | dendrite | 
| dendroid | dendrons | 
| dendrimer | dendrites | 
| dendritic | dendriform | 
| dendrimers | dendrogram | 
| dendrology | dendrograms | 
| dendrologic | dendrologies | 
| dendrologist | dendrological | 
| dendrologists | |
Note: These 17 words that start with 'dend' are found from the USA & Canada version of the tournament Scrabble word list.