saltatory evolution


The theory that the evolution of a new species from an older one may occur as a large jump, such as a major repatterning of chromosomes, rather than by gradual accumulation of small steps or mutations.

Nearby words

  1. seirios,
  2. seise,
  3. seisin,
  4. seising,
  5. seism,
  6. seismic array,
  7. seismic gap,
  8. seismic sea wave,
  9. seismic wave,
  10. seismic waves

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