---
title: "BIP39 Word #180: biology — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/biology/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #180 00010110011 

# biology — BIP39 word #180

"**biology**" is word #180 of the 2048 words in the official BIP39 English wordlist, between [bind](/bip39-word/bind/) and [bird](/bip39-word/bird/). In a seed phrase it stands for the 11-bit value `00010110011`, decimal index 179\. 

/baɪˈɒləʤi/  · _noun:_ the scientific study of living things 

[Russian](/ru/ "The BIP39 wordlist with Russian translations"): биология 

## Binary Representation

Five 1-bits and six 0-bits; 462 of the 2048 indexes have exactly five 1-bits.

One wrong bit turns it into (leftmost bit first):

[nose](/bip39-word/nose/)[filter](/bip39-word/filter/)[cushion](/bip39-word/cushion/)[all](/bip39-word/all/)[bunker](/bip39-word/bunker/)[bar](/bip39-word/bar/)[behave](/bip39-word/behave/)[blast](/bip39-word/blast/)[black](/bip39-word/black/)[bike](/bip39-word/bike/)[bind](/bip39-word/bind/) 

Position

Hex Index

0x0B3

4-Letter Prefix

biol

## About "biology" in BIP39

- "biology" has 7 letters, but the first three, **"bio"**, already identify it, because **"bi"** also begins 7 other words, among them [bicycle](/bip39-word/bicycle/), [bid](/bip39-word/bid/), [bike](/bip39-word/bike/) and [bind](/bip39-word/bind/). Three letters are enough for only 604 of the 2048 words.
- **"biol"** is unique only within the English list: it also begins biologie in the [French list](/french/), biologo in the [Italian list](/italian/), biologia in the [Portuguese list](/portuguese/) and biolog in the [Czech list](/czech/), so a four-letter backup should say which list it uses.

## Word #180 in the Other 9 BIP39 Wordlists

[Czech](/czech/) chutnat 

[French](/french/) averse 

[Italian](/italian/) avvenire 

[Japanese](/japanese/) うどん 

[Korean](/korean/) 교통 

[Portuguese](/portuguese/) arraial 

[Spanish](/spanish/) ático 

[Traditional Chinese](/chinese-traditional/) 想 

[Simplified Chinese](/chinese-simplified/) 想 

## More BIP39 Words Starting with "B"

[ #176 bicycle ](/bip39-word/bicycle/)[ #177 bid ](/bip39-word/bid/)[ #178 bike ](/bip39-word/bike/)[ #179 bind ](/bip39-word/bind/)[ #181 bird ](/bip39-word/bird/)[ #182 birth ](/bip39-word/birth/)[ #183 bitter ](/bip39-word/bitter/)[ #184 black ](/bip39-word/black/) 

[View all words starting with "B" ](/bip39-words/b/) 

## Seed phrase, key and recovery guides

- [Ethereum Keystore File (JSON Wallet): Structure and Security](/json-wallets-explained/)
- [What Is BIP39? The Standard Behind Seed Phrases](/bip39-the-foundation-of-crypto-wallet-security/)
- [Seed Phrase Examples: 12, 18 and 24 BIP39 Mnemonic Phrases](/mnemonic-words-examples-for-crypto-security-bip39/)

[ Full BIP39 Wordlist ](/)