arsenic: meaning, definition, pronunciation and examples

C1
UK/ˈɑːs(ə)nɪk/US/ˈɑːrs(ə)nɪk/

Technical, Scientific, Historical, Literary

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Quick answer

What does “arsenic” mean?

A highly poisonous metallic element (symbol As).

Audio

Pronunciation

Definition

Meaning and Definition

A highly poisonous metallic element (symbol As).

The element in various forms, notably as a toxic compound used historically in medicine, pesticides, and as a poison. Also refers to the colour arsenic (a pale greyish-green).

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. Pronunciation differs (see IPA).

Connotations

Identical strong connotations of toxicity, danger, and historical use in murder.

Frequency

Equally low-frequency in general discourse, with comparable technical/scientific use.

Grammar

How to Use “arsenic” in a Sentence

N of arsenicV (e.g., contain, test for, be poisoned with) + arsenicarsenic + N (e.g., arsenic levels)

Vocabulary

Collocations

strong
white arsenicarsenic poisoningcontain arseniclevels of arsenicarsenic trioxide
medium
trace of arsenictreated with arsenicarsenic compoundsarsenic contaminationarsenic in the
weak
deadly arsenicpure arsenicswallow arsenicarsenic and old lace

Examples

Examples of “arsenic” in a Sentence

verb

British English

  • The Victorian murderer was found to have arsenicked his victims over several years.
  • The old pesticide arsenicked the soil for decades.

American English

  • The historical records suggest someone arsenicked the rival's drink.
  • They feared the well had been arsenicked.

adjective

British English

  • The wallpaper had a distinct arsenic green tint.
  • He suffered from chronic arsenic poisoning.

American English

  • They removed the arsenic-laced soil from the site.
  • Tests revealed arsenic contamination in the groundwater.

Usage

Meaning in Context

Business

Rare, except in contexts like environmental consulting, water safety reports, or hazardous material handling.

Academic

Common in chemistry, environmental science, toxicology, geology, and history papers.

Everyday

Very low frequency. Associated with crime stories, historical anecdotes, or news about water/soil contamination.

Technical

Core term in chemistry, metallurgy, environmental engineering, and forensic science.

Vocabulary

Synonyms of “arsenic”

Strong

rat poison (contextual)toxin

Neutral

poisontoxicanttoxic substance

Weak

contaminantheavy metal (inaccurate but sometimes contextually linked)

Vocabulary

Antonyms of “arsenic”

Watch out

Common Mistakes When Using “arsenic”

  • Mispronouncing as /ɑːrˈsɛnɪk/ (stress on second syllable).
  • Using as a countable noun (*an arsenic).
  • Confusing the element (As) with the common poison 'arsenic trioxide'.

FAQ

Frequently Asked Questions

Yes, in its elemental form and common compounds. Trace amounts occur naturally, but any significant exposure is toxic.

It is extremely rare and archaic. The past tense 'arsenicked' is occasionally found in historical or literary contexts.

Both are poisons, but they are different chemical elements/compounds with distinct properties, histories, and mechanisms of toxicity.

It's a classic black comedy play and film where two elderly sisters use arsenic-laced elderberry wine to murder lonely old men.

A highly poisonous metallic element (symbol As).

Arsenic is usually technical, scientific, historical, literary in register.

Arsenic: in British English it is pronounced /ˈɑːs(ə)nɪk/, and in American English it is pronounced /ˈɑːrs(ə)nɪk/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • ['Arsenic and Old Lace'] (title of a play/film about poisoning)

Learning

Memory Aids

Mnemonic

ARSENIC sounds like 'are sick' – and you definitely would be if you ingested it.

Conceptual Metaphor

ARSENIC IS A STEALTHY KILLER / ARSENIC IS A LEGACY POLLUTANT.

Practice

Quiz

Fill in the gap
The well water was unsafe to drink due to contamination.
Multiple Choice

In which field is the term 'arsenic' LEAST likely to be used routinely?

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