1. diacritical mark a mark added to a letter to indicate a special pronunciation
  2. critical mass the minimum amount required to start or maintain a venture
  3. articulate express or state clearly
  4. diacritical capable of distinguishing
  5. criticalness a state of critical urgency
  6. dialectical materialism the materialistic philosophy of Karl Marx and Friedrich Engels
  7. critical of a serious examination and judgment of something
  8. critical angle the smallest angle of incidence for which light is totally reflected
  9. diverticulum a herniation through the muscular wall of a tubular organ
  10. caustic remark witty language used to convey insults or scorn
  11. Karl Marx founder of modern communism
  12. critical analysis an appraisal based on careful analytical evaluation
  13. cortical area any of various regions of the cerebral cortex
  14. particular unique or specific to a person or thing or category
  15. anticlimax a disappointing decline after a previous rise
  16. securities market an exchange where security trading is conducted by professional stockbrokers
  17. critical review an essay or article that gives a critical evaluation
  18. cortical region any of various regions of the cerebral cortex
  19. grammatical case nouns or pronouns or adjectives (often marked by inflection) related in some way to other words in a sentence
  20. the Great Calamity a famine in Ireland resulting from a potato blight