encrust
C1Formal, literary, technical (geology, art, marine biology)
Definition
Meaning
To cover the surface of something with a hard decorative or protective layer.
To form or cause to form a hard, outer layer, often through the accumulation of material over time; to decorate with a hard coating; to be set or embedded in such a surface.
Linguistics
Semantic Notes
Often implies the layer is hard, substantial, and may be decorative, precious, or obstructive. It can be an active process ('they encrusted it') or a passive state ('it is encrusted with').
Dialectal Variation
British vs American Usage
Differences
No significant spelling or meaning differences. The related adjective/noun 'encrustation' is slightly more common in British formal writing than the alternative 'incrustation', but both are rare.
Connotations
Identical connotations in both dialects.
Frequency
Equally low-frequency in both dialects. Slightly more likely to be encountered in technical or literary contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
[Object] + be encrusted with + [Material][Agent] + encrust + [Object] + with + [Material][Object] + become encrustedVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “encrusted with lies/metaphor (literary, for ingrained habits or ideas)”
Usage
Context Usage
Business
Rare. Possibly in luxury goods: 'a watch encrusted with sapphires'.
Academic
Used in geology ('rocks encrusted with minerals'), marine biology ('shells encrusted with barnacles'), and art history ('a gothic reliquary encrusted with gems').
Everyday
Very rare in casual speech. Might be used descriptively: 'The old pipe was completely encrusted with limescale.'
Technical
Common in the sciences (geology, chemistry, marine science) to describe accretion or deposition processes.
Examples
By Part of Speech
verb
British English
- The ancient vessel had been encrusted with coral after centuries on the seabed.
- Hard water will encrust the heating element with scale over time.
American English
- The jeweler will encrust the tiara with diamonds and rubies.
- Over the years, mineral deposits encrusted the cave walls.
adverb
British English
- No standard adverbial form in use.
- N/A
American English
- No standard adverbial form in use.
- N/A
adjective
British English
- The encrusted medieval altar was the centrepiece of the exhibition.
- They removed the heavily encrusted section of the pipe.
American English
- The encrusted jewels on the crown were dazzling.
- An encrusted layer of ice made the steps treacherous.
Examples
By CEFR Level
- The old window was encrusted with dirt.
- The chocolate cake was encrusted with nuts.
- The ancient manuscript's binding was encrusted with precious stones.
- The hull of the ship became encrusted with barnacles during its long voyage.
- Centuries of tradition have encrusted the original ritual with elaborate symbolism.
- The geologist examined the rock specimens encrusted with vivid green malachite.
Learning
Memory Aids
Mnemonic
Think of a CRUST forming ON something: EN + CRUST = to put a crust on.
Conceptual Metaphor
IDEAS/HABITS ARE ACCRETIONS: 'A mind encrusted with prejudice.' TIME ACCRETES: 'Traditions encrusted over centuries.'
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid directly translating as 'инкрустировать', which is narrower (to inlay). Russian 'покрываться коркой/налётом' is often closer for the literal sense.
- Confusion with 'incrustate' (rare variant).
Common Mistakes
- Misspelling as 'incrust' (acceptable but less common).
- Using it for soft coverings (e.g., 'encrusted with feathers' is atypical).
- Incorrect preposition: 'encrusted by jewels' (use 'with' for the material).
Practice
Quiz
In which context is the verb 'encrust' MOST appropriately used?
FAQ
Frequently Asked Questions
No. While it can describe decoration with jewels, it is commonly used for any hard, accumulated layer, including dirt, ice, salt, rust, or marine life.
'Crust' is often intransitive and describes the formation of a crust itself ('the mud crusted over'). 'Encrust' is usually transitive or passive and focuses on the action of covering an object ('encrust the cake with nuts'; 'the object was encrusted').
Yes, particularly in literary or formal contexts. You can describe ideas, language, or institutions as being 'encrusted' with tradition, bureaucracy, or outdated practices.
Yes. The adjectival use ('an encrusted surface') and the passive construction ('was encrusted with') are far more frequent than the active transitive use ('he encrusted it').