- The smallest unit of a chromosome in which alteration can be effective in causing a mutation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for muton
He waited our landing, and seeing we were unarmed threw down his muton (so they named the fish-gig) and came readily to us.