There are 16 words that start with 'calor'.
| calory | caloric | 
| calorie | calorics | 
| calories | calorize | 
| calorific | calorized | 
| calorizes | calorizing | 
| calorically | calorimeter | 
| calorimetry | calorimeters | 
| calorimetric | calorimetries | 
Note: These 16 words that start with 'calor' are found from the USA & Canada version of the tournament Scrabble word list.