There are 18 words that start with 'leuc'.
leucin | leucine | leucins |
leucite | leucoma | leucemia |
leucemic | leucines | leucites |
leucitic | leucomas | leucemias |
leucocyte | leucocidin | leucocytes |
leucoplast | leucocidins | leucoplasts |
Note: These 18 words that start with 'leuc' are found from the USA & Canada version of the tournament Scrabble word list.