motor protein(redirected from Motility protein)
Also found in: Medical.
A protein, such as myosin, that converts chemical energy into mechanical energy, generating force that powers cell movement and the transport of substances and organelles within cells.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.