1. ragged robin common perennial native to Europe and western Asia having usually pink flowers with ragged petals
  2. round robin a tournament in which every contestant plays every other contestant
  3. ragged orchis fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerated
  4. ragged orchid fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerated
  5. wake-robin any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower
  6. cotter pin a cotter consisting of a split pin that is secured (after passing through a hole) by splitting the ends apart
  7. scatter pin small pin usually worn in groups of two or more
  8. ruggedization the act of making a piece of equipment rugged
  9. ruggedisation the act of making a piece of equipment rugged
  10. target organ (radiology) organ intended to receive the therapeutic dose of a radioactive substance
  11. Rhyacotriton olympic salamanders
  12. Dick Turpin English highwayman (1706-1739)
  13. runaway robin trailing European aromatic plant of the mint family having rounded leaves and small purplish flowers often grown in hanging baskets; naturalized in North America; sometimes placed in genus Nepeta
  14. characterization the act of describing essential features
  15. scatterbrain a flighty and disorganized person
  16. corticotropin a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex
  17. luteotropin gonadotropic hormone secreted by the anterior pituitary
  18. chrysarobin a bitter yellow powder used to treat skin diseases
  19. reaction turbine a turbine with blades arranged to develop torque from gradual decrease of steam pressure from inlet to exhaust
  20. racketeering engaging in an illegal enterprise carried on for profit