biomass

/ˈbaɪə(ʊ)mæs/

//ˈbaɪə(ʊ)mæs// noun

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

"biomass" is a 7-letter English headword indexed on PlainSpell.

The verdict

“biomass” has 8 generated spelling variants in the English index at frequency #17,553. The variants make it a useful spelling check.

#17,553
frequency rank, English
4,121
“B” headwords
8
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The total mass of a living thing or a part thereof (such as a cell).

Corpus desk

Index EN-biomass · biomass · English

biomass · rank #17,553 · 8 variants · 1 confusable

  • FREQ-MID #17,553
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 1 pairs
  • VAR-MID 8 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH biographical

Nearest frequency peer: biographical (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “biomass”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “biomass” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

biomass vs biogas
71% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for biomass
PropertyValue
Headwordbiomass
LanguageEnglish
Part of speechNoun
IPA/ˈbaɪə(ʊ)mæs/
Letters7
Frequency rank#17,553
Misspellings tracked8
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “biomass”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).biomasslands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “biographical” (#17,552), “binds” (#17,551), “Blanche” (#17,555). Among 4,121 “B” headwords, “biomass” is #17,553. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around biomass (IPA /ˈbaɪə(ʊ)mæs/), anoun. Corpus frequency is #17,553 among 4,121 “B” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 8 likely wrong-spelling variants for biomass, with forms such as "bbiomass", "bimoass", and "bioamss". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "biogas", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From bio- (prefix denoting organic life) + mass (“matter, material”). The correct English form is biomass, spelled B-I-O-M-A-S-S.

Definition

  1. 1
    The total mass of a living thing or a part thereof (such as a cell).
  2. 2
    The total mass of all, or a specified category of, living things within a specific area, habitat, etc.
  3. 3
    Organic matter from living things which were recently alive (especially vegetation) used as a fuel or source of energy, especially if cultivated for that purpose; also, fuel produced from such organic matter; biofuel.

Recorded use

Wiktionary examples

These source excerpts show how biomass appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Since protein constitutes the majority of the biomass of a cell, building new protein is a major way that cells increase their size.
  2. In the untouched Shangri-la-like Kingman Reef in the Line Islands in the central Pacific, sharks make up 75 per cent of the fish biomass.

Etymology

From bio- (prefix denoting organic life) + mass (“matter, material”).

This word in other languages

biomasa(Español)biomasse(Français)Biomasse(Deutsch)

Common misspellings

Also misspelled as:

  • bbiomass
  • bimoass
  • bioamss
  • biomas
  • biommass
  • biomsas
  • boimass
  • ibomass

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of biomass - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

bbiomass1bimoass2bioamss2biomas1biommass1biomsas2boimass2ibomass2
Edit distance from "biomass"

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 "biomass"?
"biomass" is spelled B-I-O-M-A-S-S. The IPA pronunciation is /ˈbaɪə(ʊ)mæs/.
What does "biomass" mean?
As a noun, "biomass" means: The total mass of a living thing or a part thereof (such as a cell).
What words are commonly confused with "biomass"?
"biomass" is commonly confused with "biogas". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "biomass"?
The IPA (International Phonetic Alphabet) transcription for "biomass" is /ˈbaɪə(ʊ)mæs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "biomass"?
From bio- (prefix denoting organic life) + mass (“matter, material”). 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "biomass", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Blanche#17,555bulldog#17,562chatter#17,565cheered#17,566

Similar misspelling depth

Headwords with a similar count of attested misspellings (8 here; floor ≥5).

binds8 variantsblouse8 variantschops8 variantscougar8 variants

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

Source: FrequencyWords open word-frequency list