1. review article an essay or article that gives a critical evaluation
  2. revertible to be returned to the former owner or that owner's heirs
  3. vertical at right angles to the plane of the horizon or a base line
  4. 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
  5. River Adige a river in northern Italy that flows southeast into the Adriatic Sea
  6. free radical an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule
  7. articulate express or state clearly
  8. vertically in a vertical direction
  9. news article an article reporting news
  10. psi particle a neutral meson with a large mass
  11. article one of a class of artifacts
  12. definite article a determiner that indicates specificity of reference
  13. particle (nontechnical usage) a tiny piece of anything
  14. veridical truthful or coinciding with reality
  15. reverting a failure to maintain a higher state
  16. alpha particle a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes
  17. reticle a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
  18. beta particle a high-speed electron or positron emitted in the decay of a radioactive isotope
  19. versicle a short verse said or sung by a priest or minister in public worship and followed by a response from the congregation
  20. J particle a neutral meson with a large mass