1. cubic centimetre a metric unit of volume equal to one thousandth of a liter
  2. cubic centimeter a metric unit of volume equal to one thousandth of a liter
  3. quatercentenary the 400th anniversary (or the celebration of it)
  4. Catherine de Medicis queen of France as the wife of Henry II and regent during the minority of her son Charles IX (1519-1589)
  5. quattrocento the 15th century in Italian art and literature
  6. centimetre a metric unit of length equal to one hundredth of a meter
  7. centimeter a metric unit of length equal to one hundredth of a meter
  8. Stars and Bars the first flag of the Confederate States of America
  9. matricentric centered upon the mother
  10. control center the operational center for a group of related activities
  11. patricentric centered upon the father
  12. contrast material a substance that is opaque to x-rays
  13. three-centered arch a round arch whose inner curve is drawn with circles having three centers
  14. potentiometer a measuring instrument for measuring direct current electromotive forces
  15. quatercentennial the 400th anniversary (or the celebration of it)
  16. quarter-century a period of 25 years
  17. Doctor of Optometry a doctor's degree in optometry
  18. Petronas Towers twin skyscrapers built in Kuala Lumpur in 1997
  19. crescent roll very rich flaky crescent-shaped roll
  20. raison d'etre the reason why something exists