The condition or quality of being heterodox.(noun)
A heterodox opinion or doctrine.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "heterodoxy" in a sentence
"As a matter of fact, the orthodoxy of these Churches is what we call heterodoxy, since it rejects the Papal Infallibility, and the Papal Supremacy, the dogma of the Immaculate Conception, that of Purgatory, etc."
"Note 69: In our own time, no scientific or philosophical consensus exists on this question; the resulting heterodoxy is too complex to summarize briefly here."
"I'll be using the word heterodoxy in future, even though I don't know what it means."