A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Definition: A polypeptide or molecule made up of polypeptides.
Examples: Albumin, hemoglobin, keratin.
Protein Definition
Chemistry Glossary Definition of Protein
By Anne Marie Helmenstine, Ph.D., About.com
Return to the Chemistry Glossary Index
Explore Chemistry
Must Reads
About.com Special Features
Make Meals Easy
An easy way to put delicious meals together.Build Your Business
Get tips on starting up and staying competitive.Love Your Living Space
Achieve your dream home with advice from the pros.Financial Planning
Stay on top with our smart financial tips.
©2009 About.com, a part of The New York Times Company.
All rights reserved.