side–chain theory

noun

Definition of side–chain theory

  1. :  a largely displaced theory of the chemical basis of immunological phenomena: living organisms are complex aggregations of complex molecules capable of reacting with one another through some of their side chains when these side chains have a definite correspondence in structure exemplified by various outlying cell receptors that can combine with foreign molecules (as of food or toxins), and stimulate the cell to the production of other like receptors some of which may become detached from the cell and function as antibodies

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

What made you want to look up side–chain theory? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a rounded knoll or a ridge of ice

Get Word of the Day daily email!