The crossword solution for the term PREFIX WITH PRACTICE is MAL, which is a three-letter word. The term MAL is a prefix that is often used in combination with the word 'PRACTICE' to form words such as malpractice and malpractitioner. Malpractice is an act or omission by a professional that falls below the accepted standard of PRACTICE in their profession, while a malpractitioner is someone who engages in malpractice.