Magnum opus (op´us).—A great work. The chief work of a distinguished author is frequently so called.

Mala fide (´lā fī´).—In bad faith.

Mandamus (mandā´mus).—We command: a law writ.

Manibus pedibusque—Terence (man´i-bus pedi-bus´kwe).—With hands and feet—i. e., with might and main.

Materia medica (mā-ter´i-a med´ic-ca).—Substances used in medicine.

Mea culpa (´ā kul´).—By my fault.

Medio tutissimus ibis (med´i-o tū-tiss´imus ī´bis).—The middle is the safest course.

Me judice (´di-se).—I being judge; i. e., in my own opinion.

Memento mori (me-men´tō mor´ī).—Remember that you must die. Words used at Egyptian banquets to remind the guests of their mortality.

Memorabilia (memorabil´i-a).—Things to be remembered. The name of a work by Xenophon, the Athenian general, historian, and philosopher (c. 445-359 B. C.).