biodefense
noun
biodefense is spelled B-I-O-D-E-F-E-N-S-E: 10 letters. It appears about once in every 17 million words in written English, the 122,704th most frequent word form (wordfreq, 2021 data). As a noun, biodefense means “Any defensive measure taken against an attack using bacteria, viruses or toxins” (English Wiktionary, September 2026). The plural of biodefense is biodefenses.
How many letters and syllables are in biodefense?
| Letters | 10: B-I-O-D-E-F-E-N-S-E |
|---|---|
| In writing | about once in every 17 million words; the 122,704th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is biodefense?
Biodefense appears about once in every 17 million words in written English, the 122,704th 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).
Forms of biodefense
- biodefenses plural
- biodefence
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does biodefense mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Any defensive measure taken against an attack using bacteria, viruses or toxins
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does biodefense come from?
From bio- + defense.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).