spirulina: meaning, definition, pronunciation and examples

C1
UK/ˌspaɪərʊˈliːnə/US/ˌspaɪrəˈliːnə/

Specialized / Health & Wellness / Scientific

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Quick answer

What does “spirulina” mean?

A blue-green microalgae, often Arthrospira platensis or Arthrospira maxima, cultivated as a dietary supplement and health food.

Audio

Pronunciation

Definition

Meaning and Definition

A blue-green microalgae, often Arthrospira platensis or Arthrospira maxima, cultivated as a dietary supplement and health food.

A powdered or tablet form of dried spirulina algae, consumed for its high protein, vitamin, and antioxidant content.

Dialectal Variation

British vs American Usage

Differences

No significant lexical differences. The term is internationally standardized in health and scientific contexts.

Connotations

Slightly stronger association with alternative health circles and veganism in the UK; in the US, also connected to fitness and general wellness trends.

Frequency

Similar frequency in relevant contexts (health food stores, supplement marketing, nutrition science).

Grammar

How to Use “spirulina” in a Sentence

add [spirulina] to [a smoothie]take [spirulina] for [its health benefits]cultivate [spirulina] in [ponds]

Vocabulary

Collocations

strong
spirulina powderspirulina tabletsorganic spirulinaspirulina supplementblue spirulina
medium
grow spirulinaharvest spirulinarich in spirulinadose of spirulinaspirulina smoothie
weak
spirulina farmspirulina cultivationspirulina benefitsspirulina algaefresh spirulina

Examples

Examples of “spirulina” in a Sentence

adjective

British English

  • spirulina-based drink
  • spirulina-enriched powder

American English

  • spirulina-infused smoothie
  • spirulina-packed supplement

Usage

Meaning in Context

Business

Used in marketing and supply chain discussions for health foods and supplements.

Academic

Used in biology, nutrition science, and sustainable food production research.

Everyday

Used when discussing dietary supplements, smoothie ingredients, and health routines.

Technical

Used in microbiology, aquaculture, and biotechnology contexts regarding its cultivation and biochemical properties.

Vocabulary

Synonyms of “spirulina”

Neutral

blue-green algaecyanobacterium (scientific)Arthrospira (scientific genus)

Weak

pond scum (colloquial, derogatory)algae supplementsuperfood

Vocabulary

Antonyms of “spirulina”

processed foodjunk foodempty calories

Watch out

Common Mistakes When Using “spirulina”

  • Pronouncing it as /spɪˈruːlɪnə/ (spi-ROO-li-na).
  • Using it as a countable noun (e.g., 'three spirulinas'); it's generally uncountable.
  • Confusing it with chlorella or other microalgae.

FAQ

Frequently Asked Questions

No, it is a cyanobacterium, a type of bacteria that performs photosynthesis, often referred to as blue-green algae.

It is typically consumed in dried powder or tablet form. Consuming raw, wet spirulina from uncontrolled sources is not recommended due to potential toxin contamination.

It has a strong, earthy, somewhat marine or grassy flavour, which is why it's often mixed into strongly flavoured smoothies or juices.

It is considered highly sustainable compared to many animal proteins, as it requires less land and water per gram of protein produced and can be grown in brackish water.

A blue-green microalgae, often Arthrospira platensis or Arthrospira maxima, cultivated as a dietary supplement and health food.

Spirulina is usually specialized / health & wellness / scientific in register.

Spirulina: in British English it is pronounced /ˌspaɪərʊˈliːnə/, and in American English it is pronounced /ˌspaɪrəˈliːnə/. Tap the audio buttons above to hear it.

Learning

Memory Aids

Mnemonic

Think of a SPIRAL-shaped (spir-) ALGAE (-ulina) that is super healthy.

Conceptual Metaphor

SPIRULINA IS A NUTRIENT-DENSE FUEL / A GREEN POWERHOUSE.

Practice

Quiz

Fill in the gap
For an extra nutrient boost, she blends a teaspoon of powder into her morning fruit smoothie.
Multiple Choice

What is spirulina primarily classified as?

Practise

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Five interactive tools to remember words, train your ear, and build vocabulary in real context — drawn from this dictionary.

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