a.[Z]

1. 难以理解的，奥秘的
2. 超自然的，神秘的
   Astrology and alchemy are occult sciences.

   占星学和炼丹术为神秘之学。

3. 秘密的
4. 隐蔽的
5. 【医】（潜）隐的

vt.

1. 掩蔽，遮蔽
2. 【天】遮掩（星等）

vi.

1. 被掩蔽

n.

1. 神秘学；神秘仪式[the S]
   He was a student of the occult.

   他曾研究神秘学。

n.

adj.

1. involving or relating to the occult.
2. esoteric.
3. Medicine  (of a disease or process) not accompanied by readily discernible signs or symptoms.
   ▸(of blood) abnormally present, but detectable only chemically or microscopically.

v.

1. cut off from view by interposing something.
2. Astronomy  (of a celestial body) conceal (an apparently smaller body) from view by passing or being in front of it.