lipid - Master This Word
Master this word with our 5-step learning method – Learn English in English
lipid Word Meanings
- A type of organic molecule that includes fats and oils.
- A substance that is soluble in nonpolar solvents but not in polar solvents.
lipid Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
lipid Phonetic & Pronunciation
UK
/ˈlɪpɪd/
US
/ˈlɪpɪd/
lipid Word Etymology
Root decomposition: from 'lip-' (Greek for fat) + '-id' (a suffix forming nouns). Historical origin: from Latin 'lipid-, lipos' meaning fat, to Greek 'lipos', then to English. Memory image: Picture a large, glistening piece of butter—smooth and rich, representing the fatty character of lipids!
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Lipids are a broad class of organic molecules that are insoluble in water but soluble in nonpolar solvents. They include fats, oils, waxes, sterols, and certain fat-soluble vitamins. In biology, lipids store long-term energy, form cell membranes, and act as signaling molecules. The term comes from Greek lipos meaning fat, plus the suffix -id, forming a general noun. Lipids vary in structure: triglycerides in fats and oils have glycerol backbones with fatty acid chains; phospholipids have hydrophilic heads and hydrophobic tails. A memorable image is a glossy block of butter, illustrating the fatty nature of lipids. Learners often confuse lipids with fats or oils, but lipids encompass a broader category.
Usage Reminders
- • Lipid is often a mass noun for the class; a lipid = a single molecule.
- • Use adjectives like dietary, saturated, or unsaturated lipids.
- • Common phrases: lipid metabolism, lipid profile.
- • Don’t confuse with liposome or fatty acid in every context.
- • In scientific writing, use 'lipids' for plural and 'lipid' for a specific molecule.
Common Misconceptions
- Lipid equals fat or oil in all contexts.
- Lipids dissolve in water.
- All lipids are unhealthy or fatty.
- Lipid and fatty acid are the same thing.
- Lipids are proteins.
Thinking Differences
In English, lipid is a broad scientific category, not a single fat; learners often equate it with 'fat' or 'oil' and must learn the plural 'lipids' for the class.
Learning Tips
- Learn that lipid is a broad class, not a single fat.
- Practice 'lipid' (singular) vs 'lipids' (plural) correctly.
- Use common collocations: lipid metabolism, lipid profile, lipid droplet.
- Differentiate lipids from fats, oils, and fatty acids.
- Study example sentences from biology contexts.
- Visualize the memory image of a glossy butter block.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the definition of 'lipid'?
A.A type of carbohydrate
B.A form of protein
C.A group of organic compounds soluble in nonpolar solvents
D.A type of mineral
Step 2: Usage
Which sentence correctly uses the word 'lipid'?
A.She studied the role of lipid in cellular membranes.
B.The lipid was used to sweeten the recipe.
C.They decided to bead the fabric with lipid.
D.He enjoyed the lipid of the story.
Step 3: Similar Words
Which of the following is a synonym for 'lipid'?
A.Carbohydrate
B.Fat
C.Protein
D.Vitamin
Step 4: Opposite Words
Which word is an opposite of 'lipid'?
A.Moisture
B.Fiber
C.Solid
D.Sodium
Step 5: Mastery
Can you think of a real-life context where the term 'lipid' is relevant?
A.Choosing healthy oils for cooking can impact dietary fat intake.
B.The child enjoyed reading a fantasy novel.
C.All animals have a backbone.
D.Her hair conditioner was made from natural ingredients.
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