precipitin[prē sip′ə tin, pri-]
precipitin definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an antibody produced in the blood of an animal injected with a soluble antigen: when the antigen is added to blood serum from such an animal, a precipitate forms
Origin: precipit(ate) plush -in
precipitin definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An antibody that reacts with a specific soluble antigen to produce a precipitate.
Origin: precipit(ate) + -in.
precipitin - Medical Definition
An antibody that under suitable conditions combines with and causes a specific soluble antigen to precipitate.