from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A macromolecule in a living organism that is formed by linking together several smaller molecules, as a protein from amino acids or DNA from nucleotides.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any macromolecule of a living organism that is formed from the polymerization of smaller entities; a polymer that occurs in a living organism or results from life.
bio- + polymer (Wiktionary)