1. moment of truth a crucial moment on which much depends
  2. memento mori a reminder (as a death's head) of your mortality
  3. momentous of very great significance
  4. momentousness utmost importance
  5. momentary lasting for a markedly brief time
  6. Montserrat a volcanic island in the Caribbean; in the West Indies
  7. momentously in a momentous way
  8. moment of inertia the tendency of a body to resist angular acceleration
  9. momentarily for an instant
  10. mentor a wise and trusted guide and advisor
  11. Mentha citrata mint with leaves having perfume like that of the bergamot orange
  12. momentum the product of a body's mass and its velocity
  13. Montessori Italian educator who developed a method of teaching mentally handicapped children and advocated a child-centered approach (1870-1952)
  14. community center a center where the members of a community can gather for social or cultural activities
  15. concerto a composition for orchestra and a soloist
  16. momentaneous lasting for a markedly brief time
  17. pimento tree aromatic West Indian tree that produces allspice berries
  18. memento a reminder of past events
  19. tomentum cerebri a network of tiny blood vessels between the cerebral surface of the pia mater and the cerebral cortex
  20. tomentose covered with densely matted filaments