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arsenic

noun · adjective

Simple meaning

A toxic grey brittle nonmetallic chemical element with an atomic number of 33.

Pronunciation

Say it like this:

ahrsuhnik

Say the bold part a little louder.

US device voice
IPA pronunciation (US)

ˈɑɹsənɪk

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. A toxic grey brittle nonmetallic chemical element (symbol As) with an atomic number of 33.

  2. countable

    A single atom of this element.

adjective

  1. chemistry

    Of or containing arsenic with a valence of 5.

Word at a Glance

Difficulty
B2 · Upper Intermediate (estimated)
Frequency
Moderately Common
Formality
Technical
Typical Use
Varies by meaning

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: A toxic grey brittle nonmetallic chemical element (symbol As) with an atomic number of 33.

Used this way, arsenic is a specialist word that usually carries little praise or criticism of its own. This is a scientific use: it names something precisely within a field of study, so it appears in research and teaching more than in conversation.

Emotional tone
Neutral
Formality
Specialist/technical
Intensity
Not strongly marked
How common
Specialized
Connotation
Clinical and technical
Usage feel
Technical and specialized

Where it naturally appears

  • Science
  • Academic writing
  • Technical/specialist writing

Usage note

In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.

Nearby words

  • arsenic trioxide , a specialist term, precise but narrower

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

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Common Patterns and Combinations

How this word naturally appears with others.

White / poisonous

arsenic acidarsenic trioxideinorganic arsenic

Containing

contain arsenic

Other combinations

arsenic poisoningmetallic arsenicarsenic contenttotal arsenic

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Word Family

Related forms, grouped by how they connect.

Word family

Words built from the same root.

  • arsenalnounDerived noun · specialist

    All the weapons and equipment that a country has.

Compound terms

Established multiword terms.

  • arsenic groupnounCompound term

    The univalent group derived from arsine.

  • arsenic acidnounCompound term

    An acid formed from arsenic pentoxide.

  • arsenic trioxidenounCompound term

    A white powdered poisonous trioxide of arsenic.

  • white arsenicnounCompound term

    A white powdered poisonous trioxide of arsenic.

Related words

Connected by subject or meaning, not by word formation.

Related Words

Connected to the same idea, not synonyms.

More about this wordSynonyms, forms, origin

Synonyms

Sense: toxic grey brittle nonmetallic chemical element (symbol As) with an atomic number of 33

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.