spirulina

/ˌspɪɹəˈliːnə/

//ˌspɪɹəˈliːnə// noun

"spirulina" is a 9-letter English headword indexed on PlainSpell.

The verdict

“spirulina” is uncommon English (frequency #86,777 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#86,777
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A food supplement prepared from blue-green algae of the genus Arthrospira found in soda lakes.

Corpus desk

Index EN-spirulina · spirulina · English

spirulina · rank #86,777 · 0 variants · 0 confusables

  • FREQ-RARE #86,777
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH spirally

Nearest frequency peer: spirally (-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.

Long-tail ranks near “spirulina”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “spirulina” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for spirulina
PropertyValue
Headwordspirulina
LanguageEnglish
Part of speechNoun
IPA/ˌspɪɹəˈliːnə/
Letters9
Frequency rank#86,777
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “spirulina” in English

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).spirulinafalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “spirally” (#86,776), “Speyside” (#86,774), “Spurr” (#86,781). Among 6,566 “S” headwords, “spirulina” is #86,777. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

spirulina is uncommon English at frequency #86,777 among 6,566 “S” headwords, classed as anoun, transcribed /ˌspɪɹəˈliːnə/. Rarity is why readers land here mid-draft. Gloss: "A food supplement prepared from blue-green algae of the genus Arthrospira found in soda lakes.".

spirulina has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From genus name Spirulina. The correct English form is spirulina, spelled S-P-I-R-U-L-I-N-A.

Definition

  1. 1
    A food supplement prepared from blue-green algae of the genus Arthrospira found in soda lakes.

Recorded use

Wiktionary examples

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

  1. Another interesting factor in Spirulina is its effect upon appetite. Either it is so concentrated that the body signals a satisfaction feeling from the digestive tract where Spirulina has a remarkable 85% digestibility […]
  2. Research by the meat and dairy industries has been slanted. New discoveries show that B12 can be found in numerous non-meat sources, such as olives, mushrooms, bananas, spirulina, bee pollen, concord grapes, […]

Etymology

From genus name Spirulina.

This word in other languages

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 "spirulina"?
"spirulina" is spelled S-P-I-R-U-L-I-N-A. The IPA pronunciation is /ˌspɪɹəˈliːnə/.
What does "spirulina" mean?
As a noun, "spirulina" means: A food supplement prepared from blue-green algae of the genus Arthrospira found in soda lakes.
How do you pronounce "spirulina"?
The IPA (International Phonetic Alphabet) transcription for "spirulina" is /ˌspɪɹəˈliːnə/. 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 "spirulina"?
From genus name Spirulina. 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 "spirulina", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list