"cover" radical in Chinese characters (Kangxi radical 14), occurring in 軍|军[jun1], 冠[guan1] etc, known as 禿寶蓋|秃宝盖[tu1 bao3 gai4] or 平寶蓋|平宝盖[ping2 bao3 gai4]
Mnemonic symbol: 冖 shall be represented by a cooking top. Marilyn Monroe (mi-) wants to use the bathroom in the space station (Ø4), but the door is broken! She tries to cover herself with a cooking top (冖) instead.