Assertion: great horned owl's feather | /r/Synonym | plumicorn
Facets:
Source sentences:
text: The "horns" atop a Great Horned Owl's head are actually tufts of feathers called plumicorns, meaning “feather horns” in Latin.
text: It is named after the tufts of feathers known as plumicorns, which resemble horns on both sides of its head.