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  1. alpha particle a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes
  2. alphabetically in order from A to Z
  3. alphabetical arranged in order according to the alphabet
  4. articulate express or state clearly
  5. bill of Particulars the particular events to be dealt with in a criminal trial
  6. antiparticle a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy
  7. alphabetize arrange in order from A to Z
  8. toilet articles artifacts used in making your toilet
  9. heavy particle any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
  10. alphabetic arranged in order according to the alphabet
  11. alphabetise arrange in alphabetical order
  12. alphamerical of or pertaining to alphanumeric characters
  13. J particle a neutral meson with a large mass
  14. Alice B. Toklas United States writer remembered as the secretary and companion of Gertrude Stein (1877-1967)
  15. beta particle a high-speed electron or positron emitted in the decay of a radioactive isotope
  16. amphiprotic having characteristics of both an acid and a base and capable of reacting as either
  17. alpha bronze an alloy of copper and tin that can be worked
  18. alpha brass an alloy of brass and zinc; used mainly for cold working
  19. Salvia pratensis tall perennial Old World salvia with violet-blue flowers
  20. psi particle a neutral meson with a large mass