tholus: meaning, definition, pronunciation and examples

Very low
UK/ˈθəʊləs/US/ˈθoʊləs/

Technical/Specialist (Architecture, Planetary Science)

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Quick answer

What does “tholus” mean?

A small, dome-like structure or hill.

Audio

Pronunciation

Definition

Meaning and Definition

A small, dome-like structure or hill.

In architecture, a circular, often domed, building, particularly a classical temple. In planetary geology, a small dome-shaped mountain or hill, commonly found on Mars and other planetary bodies.

Dialectal Variation

British vs American Usage

Differences

No significant difference in meaning or usage. Spelling and pronunciation are identical.

Connotations

None beyond its technical definitions.

Frequency

Equally rare in both varieties of English, confined to academic and scientific publications.

Grammar

How to Use “tholus” in a Sentence

The [ADJECTIVE] tholus on MarsThe tholus of [PLACE/PERSON]

Vocabulary

Collocations

strong
Martian tholusvolcanic tholus
medium
ancient tholusisolated tholusdome-shaped tholus
weak
small tholuscentral tholus

Usage

Meaning in Context

Business

Not used.

Academic

Used in archaeology (Greek/Roman architecture) and planetary geology.

Everyday

Virtually never used.

Technical

Standard term in specific scientific papers describing Martian or other planetary topography.

Vocabulary

Synonyms of “tholus”

Strong

rotunda (architectural)dome mountain (geological)

Neutral

Vocabulary

Antonyms of “tholus”

Watch out

Common Mistakes When Using “tholus”

  • Using it as a general word for 'hill'.
  • Misspelling as 'thollus' or 'thollos'.
  • Pronouncing the 'th' as /t/ instead of /θ/.

FAQ

Frequently Asked Questions

No, it is a very rare, specialized term used almost exclusively in architecture and planetary science.

A tholus specifically refers to a dome-shaped hill or small mountain, often with a distinct, rounded profile. In technical contexts (like on Mars), it implies a specific geological origin, such as volcanic activity.

No, 'tholus' is exclusively a noun.

Pronounce the 'th' as in 'thin' (/θ/), followed by 'OH' (as in 'go') and 'luss'. The stress is on the first syllable: THOH-luss.

A small, dome-like structure or hill.

Tholus is usually technical/specialist (architecture, planetary science) in register.

Learning

Memory Aids

Mnemonic

Think of 'THOLUS' as a 'THOrously smaLL, dOME-US' structure. The 'thol' sounds like 'dome' with a lisp.

Conceptual Metaphor

A PROTUBERANCE IS A DOME.

Practice

Quiz

Fill in the gap
Planetary geologists were intrigued by the isolated volcanic in the northern plains.
Multiple Choice

In which field would you most likely encounter the word 'tholus'?