serac: meaning, definition, pronunciation and examples

C2
UK/ˈsɛr.æk/US/səˈræk/

Technical / Specialized

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Quick answer

What does “serac” mean?

A large block or pinnacle of glacial ice, typically formed where a glacier flows over a steep drop or where crevasses intersect.

Audio

Pronunciation

Definition

Meaning and Definition

A large block or pinnacle of glacial ice, typically formed where a glacier flows over a steep drop or where crevasses intersect.

In mountaineering and glaciology, a serac refers to an unstable, often dangerous ice formation on a glacier, prone to sudden collapse.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. The term is technical and used identically in both varieties.

Connotations

Connotes danger, instability, and the technical challenges of alpine environments.

Frequency

Equally rare and specialized in both varieties. Slightly higher frequency in UK English due to greater historical engagement with alpine mountaineering literature.

Grammar

How to Use “serac” in a Sentence

The climbers skirted the [serac].A [serac] collapsed without warning.The route was barred by a field of [seracs].

Vocabulary

Collocations

strong
glacial seracice seraccollapsing seracdangerous seracserac fall
medium
towering seracmassive seracunstable seracnavigate a seracserac field
weak
large seracwhite seracavoid the seracclimb past the serac

Usage

Meaning in Context

Business

Virtually never used.

Academic

Used in glaciology, physical geography, and earth science papers.

Everyday

Extremely rare. Only used when discussing mountaineering or glaciers.

Technical

Core term in glaciology and alpine climbing route descriptions.

Vocabulary

Synonyms of “serac”

Strong

glacial block

Neutral

ice pinnacleice tower

Weak

ice formationice cliff

Vocabulary

Antonyms of “serac”

Watch out

Common Mistakes When Using “serac”

  • Mispronouncing as /ˈsiː.ræk/ or /ˈsɛr.ək/.
  • Using it to refer to any large piece of ice, rather than specifically a glacial formation.
  • Misspelling as 'cerac'.

FAQ

Frequently Asked Questions

No, it is a highly specialized term used almost exclusively in glaciology and mountaineering contexts.

No, 'serac' is solely a noun. There is no standard verb form.

Its instability. Seracs can collapse suddenly and without warning, causing ice falls that are extremely hazardous to anyone below.

It is borrowed from Swiss French 'sérac', originally referring to a kind of white cheese (from Latin 'serācea'), due to the visual resemblance of the ice formation to the crumbly cheese.

A large block or pinnacle of glacial ice, typically formed where a glacier flows over a steep drop or where crevasses intersect.

Serac is usually technical / specialized in register.

Serac: in British English it is pronounced /ˈsɛr.æk/, and in American English it is pronounced /səˈræk/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • [No common idioms. Technical term.]

Learning

Memory Aids

Mnemonic

Imagine a SEEing a RACK of giant, dangerous ice cubes on a glacier. SERAC.

Conceptual Metaphor

A SERAC is a TOWER OF IMPENDING DOOM (emphasizing its instability and danger).

Practice

Quiz

Fill in the gap
The alpine guide warned the team to move quickly beneath the unstable .
Multiple Choice

What is a 'serac' primarily associated with?