diethyl ether

noun

"diethyl-ether" is a 12-letter English headword indexed on PlainSpell.

The verdict

“diethyl ether” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A clear, colorless, highly flammable liquid with a low boiling point and chemical formula CH₃-CH₂-O-CH₂-CH₃. Used as a solvent and in the past as a general anesthetic.

Corpus desk

Index EN-diethyl-ether · diethyl ether · English

diethyl ether · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for diethyl ether
PropertyValue
Headworddiethyl ether
LanguageEnglish
Part of speechNoun
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “diethyl ether” in English

diethyl etherfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

diethyl ether is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A clear, colorless, highly flammable liquid with a low boiling point and chemical formula CH₃-CH₂-O-CH₂-CH₃. Used as a solvent and in the past as a general anesthetic.".

No misspelling variants are generated for diethyl ether in our index, which points to an orthography that plays by predictable English rules. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Wiktionary doesn't record an etymology for this headword, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is diethyl ether, spelled D-I-E-T-H-Y-L- -E-T-H-E-R.

Definition

  1. 1
    A clear, colorless, highly flammable liquid with a low boiling point and chemical formula CH₃-CH₂-O-CH₂-CH₃. Used as a solvent and in the past as a general anesthetic.

Recorded use

Wiktionary example

These source excerpts show how diethyl ether appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Volatiles of kecap manis and its raw materials were extracted using Likens-Nickerson apparatus with diethyl ether as the extraction solvent. The extracts were then dried with anhydrous sodium sulfate, concentrated using a rotary evaporator followed by flushing using nitrogen until the volume was about 0.5 ml.

Synonyms

etherethoxyethaneethyl etherethyl oxide

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "diethyl ether"?
"diethyl ether" is spelled D-I-E-T-H-Y-L- -E-T-H-E-R.
What does "diethyl ether" mean?
As a noun, "diethyl ether" means: A clear, colorless, highly flammable liquid with a low boiling point and chemical formula CH₃-CH₂-O-CH₂-CH₃. Used as a solvent and in the past as a general anesthetic.
What language does "diethyl ether" come from?
"diethyl ether" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list