phospholipid: meaning, definition, pronunciation and examples
C2 (Very low frequency; specialized academic/technical vocabulary)Highly technical/scientific. Used almost exclusively in biochemistry, cell biology, molecular biology, and related medical fields.
Quick answer
What does “phospholipid” mean?
A lipid containing a phosphate group.
Audio
Pronunciation
Definition
Meaning and Definition
A lipid containing a phosphate group; a major component of all cell membranes, forming a bilayer structure.
In biochemistry, a class of lipids that are a primary building block of cellular membranes, characterized by a hydrophilic "head" containing phosphate and a hydrophobic "tail" made of fatty acids. They are amphipathic, enabling them to form bilayers in aqueous environments.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is consistent.
Connotations
Purely technical with no regional connotations.
Frequency
Equally rare and specialized in both varieties.
Grammar
How to Use “phospholipid” in a Sentence
[phospholipid] + [verb: forms, constitutes, makes up, comprises] + [membrane/bilayer][membrane] + [verb: is composed of, consists of, contains] + [phospholipids][scientist] + [verb: studies, analyzes, extracts] + [phospholipids]Vocabulary
Collocations
Examples
Examples of “phospholipid” in a Sentence
adjective
British English
- The phospholipid composition of the bilayer was analysed.
- Phospholipid vesicles are used as model systems.
American English
- The phospholipid bilayer is fundamental to cell biology.
- Researchers observed changes in phospholipid metabolism.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Core terminology in life sciences. E.g., 'The experiment investigated phospholipid asymmetry in the plasma membrane.'
Everyday
Extremely unlikely outside of advanced educational contexts.
Technical
Essential term in biochemistry protocols, research papers, and textbooks describing membrane structure and function.
Vocabulary
Synonyms of “phospholipid”
Neutral
Weak
Watch out
Common Mistakes When Using “phospholipid”
- Misspelling as 'phospholibid' or 'fosfolipid'.
- Confusing it with general 'lipids' or 'triglycerides'.
- Using it in non-scientific contexts where simpler terms like 'fat' or 'membrane component' would suffice.
FAQ
Frequently Asked Questions
It is a type of lipid (fat), but not all lipids are phospholipids. Phospholipids are structurally distinct due to their phosphate-containing head group and are primarily structural, whereas fats like triglycerides are mainly for energy storage.
Because they have a dual nature: a hydrophilic (water-loving) phosphate head and hydrophobic (water-fearing) fatty acid tails. This property drives them to form bilayers in water.
Almost exclusively in advanced biology, biochemistry, or medicine textbooks, research articles, and courses. It is not part of general English vocabulary.
Phosphatidylcholine, also known as lecithin, is a very common phospholipid found in egg yolks and soybeans, and is a major component of human cell membranes.
A lipid containing a phosphate group.
Phospholipid is usually highly technical/scientific. used almost exclusively in biochemistry, cell biology, molecular biology, and related medical fields. in register.
Phospholipid: in British English it is pronounced /ˌfɒsfəʊˈlɪpɪd/, and in American English it is pronounced /ˌfɑːsfoʊˈlɪpɪd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: PHOSPHOrus + LIPID = PHOSPHOLIPID. It's a fat (lipid) with a phosphate 'head'.
Conceptual Metaphor
BUILDING BLOCK (of a membrane), BARRIER COMPONENT, AMPHIPATHIC JANITOR (has one part that loves water and one that hates it, organizing itself into a wall).
Practice
Quiz
What is the primary structural role of phospholipids?