Suggestion received from another person.
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 heterosuggestion
Historical Examples of heterosuggestion
I find in such cases autosuggestion more liberating than heterosuggestion if the development has not gone too far.Psychotherapy