Definition of 「㐲」:
1. A name of an island.
海岛名。
2. The same as "伏".
同“伏”。
3. A term referring to "Dalu," one of the twelve pitches in ancient music. It is one octave lower than "Dalu" and is called "㐲 Lü".
大吕，古乐十二律之一。比“大吕”低一个八度记为“㐲吕”。
4. A term referring to "Dalu," one of the twelve pitches in ancient music. It is one octave lower than "Dalu" and is called "㐲 Lü".
大吕，古乐十二律之一。比“大吕”低一个八度记为“㐲吕”。
For reference: "Yiti Zidian" → Same as 【伏】. [Key literature]: "Han Li Zi Yuan. Ru Sheng. Wu Yun. Fu Zi" citing "Laozi Ming".