sphingomyelin: meaning, definition, pronunciation and examples
Low/Very SpecializedAcademic, Technical/Scientific (Biochemistry, Neurology, Cell Biology)
Quick answer
What does “sphingomyelin” mean?
A type of sphingolipid found in animal cell membranes, particularly in the myelin sheath that surrounds and insulates nerve axons.
Audio
Pronunciation
Definition
Meaning and Definition
A type of sphingolipid found in animal cell membranes, particularly in the myelin sheath that surrounds and insulates nerve axons.
A phospholipid composed of sphingosine, a fatty acid, phosphoric acid, and choline, essential for the structural integrity and function of neural tissue. It is a major component of the myelin sheath and plays roles in cell signaling and apoptosis.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Pronunciation differs slightly (see IPA). Spelling is identical.
Connotations
Purely technical term with identical scientific meaning in both varieties.
Frequency
Equally low and specialized in both dialects, confined to scientific literature.
Grammar
How to Use “sphingomyelin” in a Sentence
The [membrane] contains sphingomyelin.[Enzyme X] cleaves sphingomyelin into [products].[Analysis] revealed elevated sphingomyelin.Vocabulary
Collocations
Examples
Examples of “sphingomyelin” in a Sentence
adjective
British English
- sphingomyelin-related metabolism
- the sphingomyelin content
American English
- sphingomyelin-based pathway
- sphingomyelin-rich domains
Usage
Meaning in Context
Business
Virtually never used.
Academic
Core term in advanced biochemistry, neurology, and cell biology papers.
Everyday
Never used.
Technical
Essential in laboratory reports, medical research, and pharmacology discussions related to neural disorders or lipidomics.
Vocabulary
Synonyms of “sphingomyelin”
Neutral
Weak
Vocabulary
Antonyms of “sphingomyelin”
Watch out
Common Mistakes When Using “sphingomyelin”
- Misspelling as 'sphingomyaline', 'sphingomielin'.
- Using as a countable noun ('a sphingomyelin').
- Confusing with 'sphingosine' or 'ceramide' (its metabolic relatives).
FAQ
Frequently Asked Questions
It is a phospholipid, a type of lipid, not a protein.
Myelin is the entire insulating sheath around nerves, made of proteins and lipids. Sphingomyelin is one specific type of lipid found within the myelin sheath.
Most notably in Niemann-Pick disease types A and B, where a deficiency in the enzyme acid sphingomyelinase leads to toxic accumulation of sphingomyelin.
Yes, it is present in animal-based foods like eggs, meat, and milk, but it is also synthesised by the body.
A type of sphingolipid found in animal cell membranes, particularly in the myelin sheath that surrounds and insulates nerve axons.
Sphingomyelin is usually academic, technical/scientific (biochemistry, neurology, cell biology) in register.
Sphingomyelin: in British English it is pronounced /ˌsfɪŋɡəʊˈmaɪəlɪn/, and in American English it is pronounced /ˌsfɪŋɡoʊˈmaɪəlɪn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: SPHINX (mysterious) + MYELIN (nerve sheath). A 'mysterious lipid in the myelin sheath'.
Conceptual Metaphor
The 'insulating tape' of the nerve wire: a specialised biochemical component that provides protective wrapping.
Practice
Quiz
Sphingomyelin is primarily a component of: