There are 10 words that start with 'trih'.
trihedra | trihedral |
trihedron | trihybrid |
trihedrals | trihedrons |
trihybrids | trihydroxy |
trihalomethane | trihalomethanes |
Note: These 10 words that start with 'trih' are found from the USA & Canada version of the tournament Scrabble word list.