{"senses": [{"links": [["F region", "F region#English"]], "glosses": ["Synonym of F region."], "synonyms": [{"word": "F region", "tags": ["synonym", "synonym-of"]}], "categories": ["English entries with incorrect language header", "English entries with language name categories using raw markup", "English eponyms", "English lemmas", "English multiword terms", "English proper nouns", "English terms with non-redundant non-automated sortkeys", "English uncountable nouns", "Pages with 1 entry", "Pages with entries"]}], "pos": "name", "head_templates": [{"name": "en-prop", "args": {"def": "1"}, "expansion": "the Appleton layer"}], "forms": [{"form": "the Appleton layer", "tags": ["canonical"]}], "etymology_text": "Named after the English physicist Edward Appleton.", "word": "Appleton layer", "lang": "English", "lang_code": "en"}