1. uterine contraction a rhythmic tightening in labor of the upper uterine musculature that contracts the size of the uterus and pushes the fetus toward the birth canal
  2. experimental extinction a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus
  3. operating instructions a manual usually accompanying a technical device and explaining how to install or operate it
  4. course of instruction education imparted in a series of lessons or meetings
  5. supervisor call instruction an instruction that interrupts the program being executed and passes control to the supervisor
  6. reconstruction the activity of building something again
  7. experimental condition the procedure that is varied in order to estimate a variable's effect by comparison with a control condition
  8. Reconstruction the period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877
  9. grammatical construction a group of words that form a constituent of a sentence and are considered as a single unit
  10. road construction the construction of roads
  11. experience the content of observation or participation in an event
  12. experimentation the testing of an idea
  13. misconstruction a kind of misinterpretation resulting from putting a wrong construction on words or actions (often deliberately)
  14. strong interaction (physics) the interaction that binds protons and neutrons together in the nuclei of atoms; mediated by gluons
  15. macro instruction a single computer instruction that results in a series of instructions in machine language
  16. vasoconstriction decrease in the diameter of blood vessels
  17. intestinal obstruction blockage of the intestine (especially the ileum) that prevents the contents of the intestine from passing to the lower bowel
  18. Braxton-Hicks contraction painless contractions of the muscles of the uterus that continue throughout pregnancy with increasing frequency
  19. deconstruction a philosophical theory of criticism (usually of literature or film) that seeks to expose deep-seated contradictions in a work by delving below its surface meaning
  20. muscular contraction a shortening or tensing of a part or organ