proteolysis

noun

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

"proteolysis" is a 11-letter English headword indexed on PlainSpell.

The verdict

“proteolysis” is uncommon English (frequency #95,305 among 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#95,305
frequency rank, English
46,516
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The hydrolysis of proteins into peptides and amino acids, especially as part of the digestion of food.

Key facts for proteolysis
PropertyValue
Headwordproteolysis
LanguageEnglish
Part of speechNoun
Letters11
Frequency rank#95,305
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “proteolysis” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). proteolysis lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

proteolysis is uncommon English at frequency #95,305 among 46,516 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The hydrolysis of proteins into peptides and amino acids, especially as part of the digestion of food.".

No misspelling variants are generated for proteolysis in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From proteo- + -lysis. The correct English form is proteolysis, spelled P-R-O-T-E-O-L-Y-S-I-S.

Definition

  1. 1
    The hydrolysis of proteins into peptides and amino acids, especially as part of the digestion of food.

Etymology

From proteo- + -lysis.

This word in other languages

protéolyse(Français)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "proteolysis"?
"proteolysis" is spelled P-R-O-T-E-O-L-Y-S-I-S.
What does "proteolysis" mean?
As a noun, "proteolysis" means: The hydrolysis of proteins into peptides and amino acids, especially as part of the digestion of food.
What is the origin of the word "proteolysis"?
From proteo- + -lysis. See the full etymology section above for more details.
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 “proteolysis”

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

  • The one correct English spelling is P-R-O-T-E-O-L-Y-S-I-S - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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