1. writer's block an inability to write
  2. ride horseback ride on horseback
  3. breeze block a light concrete building block made with cinder aggregate
  4. tower block tower consisting of a multistoried building of offices or apartments
  5. trap block (American football) an illegal block
  6. winter's bark aromatic bark having tonic and stimulant properties
  7. protrusible capable of being thrust forward, as the tongue
  8. rudderstock a vertical post at the forward edge of a rudder that enables the rudder to pivot
  9. reversible capable of being returned to the original condition
  10. reversibly in a reversible manner
  11. arthrosporic of or relating to arthrospores
  12. roadblock any condition that makes it difficult to make progress or to achieve an objective
  13. writer's name the name that appears on the by-line to identify the author of a work
  14. mother's milk milk secreted by a woman who has recently given birth
  15. reversibility the quality of being reversible in either direction
  16. painter's colic symptom of chronic lead poisoning and associated with obstinate constipation
  17. rooter skunk large naked-muzzled skunk with white back and tail
  18. water supply a facility that provides a source of water
  19. dress blues a dress uniform for formal occasions
  20. arteria celiaca an artery that originates from the abdominal aorta just below the diaphragm and branches into the left gastric artery and the common hepatic artery and the splenic artery

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