Skip to main content

butyl

/ˈbjuːtɪl/noun

butyl is spelled B-U-T-Y-L: 5 letters and 2 syllables. It appears about once in every 3 million words in written English, the 52,954th most frequent word form (wordfreq, 2021 data). As a noun, butyl means “Any of four isomeric univalent hydrocarbon radicals, C₄H₉, formally derived from butane by the loss of a hydrogen atom” (English Wiktionary, September 2026). The plural of butyl is butyls.

How many letters and syllables are in butyl?

Letters5: B-U-T-Y-L
Syllables2 (from its American pronunciation)
In writingabout once in every 3 million words; the 52,954th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is butyl?

Butyl appears about once in every 3 million words in written English, the 52,954th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce butyl?

  • /ˈbjuːtɪl/
  • /ˈbjuːtaɪl/

Butyl has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-butyl.wav, Wikimedia Commons (author and licence on each file's page).

Forms of butyl

  • butyls plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does butyl mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    Any of four isomeric univalent hydrocarbon radicals, C₄H₉, formally derived from butane by the loss of a hydrogen atom.

  2. 2

    A synthetic rubber made by the polymerization of isobutylene.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you abbreviate butyl?

Wiktionary records one abbreviation of butyl: Bu.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Butyl in Spanish, French, German and Portuguese

In the sense any of four isomeric univalent hydrocarbon radicals, C4H9:

LanguageWords
GermanButyl
Portuguesebutil, butilo
Spanishbutilo

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does butyl come from?

From but- + -yl.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after butyl