1. reproductive cloning making a full living copy of an organism
  2. reproductive structure the parts of a plant involved in its reproduction
  3. reproductive memory recall that is hypothesized to work by storing the original stimulus input and reproducing it during recall
  4. reproductive system organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring
  5. productiveness the quality of being productive or having the power to produce
  6. reproductive cell a spermatozoon or an ovum
  7. protective covering a covering that is intend to protect from damage or injury
  8. perfective tense a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)
  9. protective tariff a tariff imposed to protect domestic firms from import competition
  10. objective the goal intended to be attained
  11. protectiveness a feeling of protective affection
  12. protective garment clothing that is intended to protect the wearer from injury
  13. hereditary pattern attributes acquired via biological heredity from the parents
  14. reproductive producing new life or offspring
  15. unproductiveness the quality of lacking the power to produce
  16. approach pattern the path that is prescribed for an airplane that is preparing to land at an airport
  17. radioactive dating measurement of the amount of radioactive material (usually carbon 14) that an object contains; can be used to estimate the age of the object
  18. radioactive material material that is radioactive
  19. productivity the quality of yielding positive results
  20. C-reactive protein a byproduct of inflammation