There are 15 words that end with 'uclear'.
| nuclear | binuclear | 
| nonnuclear | pronuclear | 
| subnuclear | antinuclear | 
| homonuclear | mononuclear | 
| polynuclear | extranuclear | 
| macronuclear | multinuclear | 
| internuclear | photonuclear | 
| thermonuclear | |
Note: These 15 words that end with 'uclear' are found from the USA & Canada version of the tournament Scrabble word list.