The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- The study of grammatical categories or linguistic units that have both morphological and syntactic properties.
- The set of rules that govern linguistic units whose properties are definable by both morphological and syntactic criteria.
Origin: morpho(logy) + syntax.