Definition of "proteid" [pro•te•id]

• A protein. No longer in scientific use. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The makers of meat extracts and other foods, either from their own ignorance of modern research or their wish to take advantage of the lack of knowledge and prejudice of the public, call proteid matter alone nourishment."
• "Again, certain vegetables, as beans, peas, and peanuts, are rich in a kind of proteid which is called _legumen_."
• "In this way it may become changed into those chemically indefinite, artificial products, called proteid compounds."