penetralium C2+ Topic:House & Home US /ˌpɛnɪˈtɹeɪliəm/ UK /ˌpɛnɪˈtɹeɪliəm/ See IPA manual Meanings 1 noun the innermost (or most secret) part of a building; an inner sanctum; a sanctum sanctorum. Only family members were admitted to the house's penetralium. Topics House & Home External links Cambridge Dictionary Wiktionary Google Images # penetralium **Type:** Word **Level:** C2+ **Part of speech:** noun **IPA (US):** /ˌpɛnɪˈtɹeɪliəm/ **IPA (UK):** /ˌpɛnɪˈtɹeɪliəm/ ## Meanings 1. the innermost (or most secret) part of a building; an inner sanctum; a sanctum sanctorum. ## Examples - Only family members were admitted to the house's penetralium. ## Topics - House & Home markdown