1. abstract entity a general concept formed by extracting common features from specific examples
  2. definite quantity a specific measure of amount
  3. relative quantity a quantity relative to some purpose
  4. restriction site the specific sites at which a restriction enzyme will cleave DNA
  5. numerical quantity a quantity expressed as a number
  6. restrictive clause a subordinate clause that limits or restricts the meaning of the noun phrase it modifies
  7. restricted subject to an act of limitation
  8. indefinite quantity an estimated quantity
  9. parametric quantity a constant in the equation of a curve that can be varied to yield a family of similar curves
  10. restrictiveness a lack of permissiveness or indulgence and a tendency to confine behavior within certain specified limits
  11. constant quantity a quantity that does not vary
  12. restricting restricting the scope or freedom of action
  13. restaurant attendant someone employed to provide service in a dining room
  14. district attorney an official prosecutor for a judicial district
  15. directed study a course of study that is supervised and controlled by a specialist in the subject
  16. fundamental quantity one of the four quantities that are the basis of systems of measurement
  17. restriction nuclease any of the enzymes that cut nucleic acid at specific restriction sites and produce restriction fragments; obtained from bacteria (where they cripple viral invaders); used in recombinant DNA technology
  18. string quartet an instrumental quartet with 2 violins and a viola and a cello
  19. restriction fragment the fragment of DNA that is produced by cleaving DNA with a restriction enzyme
  20. estrogen antagonist an antagonist for estrogen that is used in the treatment of breast cancer

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