adj. Between different parts of the same molecule.
the GNU version of the Collaborative International Dictionary of English
adj. Between molecules; situated, or acting, between the molecules of bodies.
adj. Being or occurring within a single molecule.
The Century Dictionary and Cyclopedia
Being or occurring within a molecule.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. within the molecule; occurring by a reaction between different parts of the same molecule
Word Usage
"I already knew that the aequorin luminescence was caused by an intramolecular reaction that takes place in the protein molecule, which would be difficult to study."