occult

noun

• mystical, supernatural, or magical powers, practices, or phenomena:a secret society to study alchemy and the occult

adjective

• 1involving or relating to mystical, supernatural, or magical powers, practices, or phenomena:an occult ceremony a weird occult sensation of having experienced the identical situation before
• communicated only to the initiated; esoteric:the typically occult language of the time

• 2 Medicine (of a disease or process) not accompanied by readily discernible signs or symptoms: careful palpation sometimes discloses occult spina bifida
• (of blood) abnormally present, e.g. in faeces, but detectable only chemically or microscopically.

verb

• cut off from view by interposing something:a wooden screen designed to occult the competitors
• Astronomy (of a celestial body) conceal (an apparently smaller body) from view by passing or being in front of it: the Moon occults Mars during daylight on March 22