active methyl


A methyl group, bound to a quaternary ammonium ion or a tertiary sulfonium ion, that can take part in transmethylation reactions.

Nearby words

  1. artificial pacemaker,
  2. artificial person,
  3. artificial radioactivity,
  4. artificial reality,
  5. artificial respiration,
  6. artificial turf,
  7. artificial ventilation,
  8. artificiality,
  9. artificialize,
  10. artificially

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.