antitrypsin
noun
antitrypsin is a noun meaning “Any of a class of serum proteins that inhibit trypsin and similar proteolytic enzymes” (English Wiktionary, September 2026). It is spelled A-N-T-I-T-R-Y-P-S-I-N, and it appears about once in every 22 million words in written English (wordfreq, 2021 data). The plural of antitrypsin is antitrypsins.
What does antitrypsin mean?
noun
- 1
Any of a class of serum proteins that inhibit trypsin and similar proteolytic enzymes
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of antitrypsin
- antitrypsins plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is antitrypsin?
Antitrypsin appears about once in every 22 million words in written English, the 143,405th 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).
Antitrypsin in Spanish, French, German and Portuguese
In the sense class of serum proteins:
| Language | Words |
|---|---|
| Portuguese | antitripsina |
| Spanish | antitripsina |
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 antitrypsin come from?
From anti- + trypsin.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).