Separation of similar substances by repeated extraction by two immiscible liquids.
Grey vs. GrayGrey and gray are both accepted in the English language. They refer to a color of a neutral tone between black and white, and can also be used metaphorically to convey gloom and dullness. However, gray is the more popular spelling in the US, while grey reigns supreme in the UK. For centuries, the one letter difference between gray and grey has left people wondering …
ZionistRead more in this article about some frequently asked questions and fun facts related to our definitions.
- programmed cell death,
- programmed instruction,
- programmed learning,
- progress bar,
- progress chaser
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.