The term LAT is an acronym for Licensed Addiction Therapist. It is a professional designation given to individuals who have completed the necessary training and education to provide counseling and therapy services to those suffering from addiction. The crossword solutions for the term LAT are DAT, which stands for Drug and Alcohol Therapist, and GENIT, which stands for Generalist in Addiction Treatment. These designations indicate that the individual has specialized knowledge and experience in the field of addiction treatment.