Major: The subject or area of studies in which a student concentrates. Undergraduates usually choose a major after the first two years of general courses in the arts and sciences.

Major professor/thesis adviser: For research degrees, the professor who works closely with a student in planning and choosing a research plan, in conducting the research, and in presenting the results. The major professor serves as the head of a committee of faculty members who review progress and results.

Master's degree: Degree conferred by an institution of higher learning after students complete academic requirements that usually include a minimum of one year's study beyond the bachelor's degree.

MCAT: Medical College Admission Test required of applicants to U.S. medical schools.

Midterm exam: An exam administered after half the academic term has passed that covers all course material studied up to that point.

NCLEX-RN: A licensing examination for registered nurses. It is required by each state and must be passed before a nurse can practice in that state.