pervasive developmental disorder(redirected from Child development disorders, pervasive)
Also found in: Medical.
pervasive developmental disorder
n. Abbr. PDD
Any of several disorders, including autism, that begin in childhood and are characterized by difficulties with social interaction and communication.
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.