occultation
LowFormal / Technical
Definition
Meaning
The action or process of concealing or hiding something from view or knowledge.
In astronomy: the passing of one celestial body in front of another, temporarily obscuring it. In broader usage: the state of being hidden, mysterious, or withdrawn from ordinary observation.
Linguistics
Semantic Notes
Primary modern use is in astronomy. In historical or esoteric contexts, it relates to the secret, hidden, or mysterious. Not to be confused with 'obfuscation' (making something unclear), as occultation implies complete concealment or covering.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Both varieties use it predominantly in technical (astronomical) contexts.
Connotations
In both, the word carries formal, scientific, and slightly archaic or esoteric connotations.
Frequency
Equally rare in both varieties. Slight potential for more frequent historical/literary use in British English due to tradition.
Vocabulary
Collocations
Grammar
Valency Patterns
the occultation of [celestial body] by [celestial body]to observe/watch an occultationan occultation occurs/was recordedVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[None specific to this word]”
Usage
Context Usage
Business
Virtually never used.
Academic
Used in astronomy, history of science, and occasionally in literary studies discussing themes of secrecy.
Everyday
Extremely rare. Would likely be misunderstood.
Technical
Standard term in astronomy for one body passing in front of another.
Examples
By Part of Speech
verb
British English
- The moon will occult the bright star tonight.
- Ancient texts describe how the goddess could occult herself from mortal sight.
American English
- The asteroid is predicted to occult a distant galaxy.
- The spy's training taught him how to occult his true intentions.
adverb
British English
- [No standard adverbial form in use]
American English
- [No standard adverbial form in use]
adjective
British English
- The occultation event was precisely timed.
- He studied occultation phenomena for his PhD.
American English
- The occultation data was collected by the telescope.
- We reviewed the occultation predictions for the year.
Examples
By CEFR Level
- [Too rare for A2 level. Use simpler words like 'hide' or 'cover'.]
- An eclipse is a kind of occultation.
- The occultation of the star was very brief.
- Astronomers travelled to Chile to observe the lunar occultation of Jupiter.
- The novel deals with the occultation of truth by political power.
- The precise timing of the stellar occultation allowed scientists to calculate the asteroid's diameter with remarkable accuracy.
- The poet used the metaphor of occultation to describe the gradual fading of memory and the self into obscurity.
Learning
Memory Aids
Mnemonic
Think of the 'occult' (secret/mysterious) and an 'eclipse'. An occultation is when a star or planet is 'made occult' or hidden by another object.
Conceptual Metaphor
KNOWLEDGE/TRUTH IS LIGHT; IGNORANCE/SECRECY IS DARKNESS. Occultation is the casting of something into darkness.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation as "окультация" – this is a false friend. The correct astronomical term is "покрытие" (небесного тела). For concealment, use "сокрытие", "утаивание".
Common Mistakes
- Confusing it with 'obfuscation' or 'obscuration' (which imply making unclear, not hiding).
- Using it as a synonym for 'obscurity' in non-technical writing.
- Misspelling as 'occulation'.
Practice
Quiz
In which field is the term 'occultation' most precisely and commonly used?
FAQ
Frequently Asked Questions
An eclipse is a specific, dramatic type of occultation, usually involving the Sun, Earth, and Moon (solar/lunar eclipse). An occultation is the broader term for any event where one celestial body passes in front of another, obscuring it.
It is highly formal and technical. In everyday speech, words like 'hiding', 'concealment', or 'blocking' are far more natural and will be better understood.
Yes, both come from the Latin 'occultare' meaning 'to hide'. 'Occultation' retains the core meaning of hiding, while 'occult' as an adjective/adjective refers to hidden, secret, or supernatural knowledge.
The stress is on the third syllable: 'uh-kul-TAY-shun'. The first syllable is like the 'o' in 'clock' (UK) or 'father' (US).