Term Name:	piRNA-mediated heterochromatin formation
Synonyms:	piRNA-directed heterochromatin formation, piwiRNA-directed heterochromatin formation
Definition:	The formation of heterochromatin into a heterochromatin domain, enriched in histone H3 methylated on lysine 9 (H3K9me), by a process mediated by a Piwi-associated RNA (piRNA).
Ontology:	GO: Biological Process [GO:0140966]    QuickGO    AmiGO