Prolin

[pʁoˈliːn]

/[pʁoˈliːn]/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

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

Unranked
below top-frequency German
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - eine nicht essentielle proteinogene Aminosäure

Key facts for Prolin
PropertyValue
HeadwordProlin
LanguageGerman
Part of speechNoun
IPA[pʁoˈliːn]
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Prolin” sits in German frequency

Prolin falls outside the top-100,000 ranked German 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

Prolin is uncommon German outside the top frequency list, classed as anoun, transcribed [pʁoˈliːn]. Rarity is why readers land here mid-draft. Gloss: "eine nicht essentielle proteinogene Aminosäure".

No misspelling variants are generated for Prolin in our index, which points to an orthography that plays by predictable German rules. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct German form is Prolin, spelled P-R-O-L-I-N.

Definition

  1. 1
    eine nicht essentielle proteinogene Aminosäure

This word in other languages

proline(English)prolina(Español)

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 "Prolin"?
"Prolin" is spelled P-R-O-L-I-N. The IPA pronunciation is [pʁoˈliːn].
What does "Prolin" mean?
As a noun, "Prolin" means: eine nicht essentielle proteinogene Aminosäure
How do you pronounce "Prolin"?
The IPA (International Phonetic Alphabet) transcription for "Prolin" is [pʁoˈliːn]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Prolin" come from?
"Prolin" is a German word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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.

Using “Prolin”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct German spelling is P-R-O-L-I-N - every other letter order is a misspelling in standard orthography.
  • Say it as [pʁoˈliːn] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list