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ethyl

noun

Simple meaning

The univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom.

Pronunciation

Say it like this:

ehthuhl

Say the bold part a little louder.

US device voice
IPA pronunciation (US)

ˈɛθəl

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. organic chemistry

    The univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom

Word at a Glance

Difficulty
C1 · Advanced (estimated)
Frequency
Uncommon
Formality
Technical

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: The univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom

Used this way, ethyl 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

  • ethyl group , rarer, so it draws attention

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.

ethyl alcoholethyl acetateethyl etherethyl chlorideethyl celluloseethyl bromideethyl groupethyl acrylate

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • ethyl alcoholnounCompound term

    The intoxicating agent in fermented and distilled liquors.

  • ethyl aminobenzoatenounCompound term

    A white crystalline ester used as a local anesthetic.

  • ethyl chloridenounCompound term

    A colorless flammable gas used as a local surface anesthetic.

  • ethyl ethernounCompound term

    A colorless volatile highly flammable liquid formerly used as an inhalation anesthetic.

  • ethyl groupnounCompound term

    The univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom.

  • ethyl radicalnounCompound term

    The univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom.

Related words

Connected by subject or meaning, not by word formation.

  • methyl alcoholnounRelated term

    A light volatile flammable poisonous liquid alcohol.

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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.