There are 14 13-letter words that start with 'ster'.
| stercoraceous | stereographed | 
| stereographic | stereoisomers | 
| stereological | stereophonies | 
| stereopticons | stereoregular | 
| stereoscopies | stereotypical | 
| sterilization | sternforemost | 
| sternutations | steroidogenic | 
Note: These 14 13-letter words that start with 'ster' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with stere, stern, steri, stero, sterl, stert, stera, sterc.
5-letter words start with 'ster' (2)