linear induction motor: meaning, definition, pronunciation and examples
Low (C2/Technical)Formal, Technical, Academic
Quick answer
What does “linear induction motor” mean?
An electric motor that produces motion in a straight line (linear motion) instead of rotational motion, using the principles of electromagnetic induction.
Audio
Pronunciation
Definition
Meaning and Definition
An electric motor that produces motion in a straight line (linear motion) instead of rotational motion, using the principles of electromagnetic induction.
A specialized type of AC electric motor where the stator and rotor are 'unrolled', creating a flat, moving magnetic field that propels a carriage or sled along a track. It is commonly used in applications requiring high-speed, direct linear propulsion, such as maglev trains, industrial automation, and some roller coasters.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling conventions follow national norms (e.g., 'motor' vs. 'motor'). Pronunciation differences are phonetic, not lexical.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low-frequency and specialized in both varieties, confined to engineering and industrial contexts.
Grammar
How to Use “linear induction motor” in a Sentence
The [noun] is powered/propelled/driven by a linear induction motor.A linear induction motor consists of/comprises a stator and a reaction plate.Engineers developed/implemented a linear induction motor for the [application].Vocabulary
Collocations
Examples
Examples of “linear induction motor” in a Sentence
adjective
British English
- The linear-induction-motor design was revolutionary.
- They studied linear induction motor principles.
American English
- The linear-induction-motor design was revolutionary.
- They studied linear induction motor principles.
Usage
Meaning in Context
Business
Rare, used only in specific industrial or transportation project proposals and technical specifications.
Academic
Common in engineering, physics, and transportation technology papers, theses, and textbooks.
Everyday
Extremely rare. Would only be used when explaining the technology behind a specific transport system like a maglev train.
Technical
The primary register. Used in design documents, research, technical manuals, and engineering discussions.
Vocabulary
Synonyms of “linear induction motor”
Strong
Neutral
Weak
Vocabulary
Antonyms of “linear induction motor”
Watch out
Common Mistakes When Using “linear induction motor”
- Incorrectly calling it a 'linear motor' when specificity is required (many linear motors are not induction-based).
- Mispronouncing 'induction' with the stress on the first syllable (IN-duction) instead of the second (in-DUC-tion).
- Using it as a countable noun without an article (e.g., 'It uses linear induction motor') instead of 'a linear induction motor'.
FAQ
Frequently Asked Questions
No. A linear induction motor (LIM) is a type of motor. Maglev (magnetic levitation) is a suspension technology. A maglev train may use a LIM for propulsion, but not all LIMs are used in maglev systems, and not all maglev systems use LIMs.
Typically, no. A standard LIM only provides propulsive force. Levitation is usually provided by a separate system of magnets (in maglev) or by physical wheels/rails.
While not common, you might encounter one in certain high-tech applications like the propulsion system of some advanced amusement park rides, specific automated factory lines, or in prototype transportation systems.
It is called 'induction' because it operates on the principle of electromagnetic induction, where a moving magnetic field induces an electric current in a conductor (the reaction plate), which in turn creates its own magnetic field to produce motion.
An electric motor that produces motion in a straight line (linear motion) instead of rotational motion, using the principles of electromagnetic induction.
Linear induction motor is usually formal, technical, academic in register.
Linear induction motor: in British English it is pronounced /ˌlɪn.i.ər ɪnˈdʌk.ʃən ˌməʊ.tər/, and in American English it is pronounced /ˌlɪn.i.ɚ ɪnˈdʌk.ʃən ˌmoʊ.t̬ɚ/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a LIM as a regular induction motor that has been 'sliced open and flattened out' so that instead of going round and round, its motion is in a LINE.
Conceptual Metaphor
A MOTOR IS A PROPULSION DEVICE; LINEAR MOTION IS UNROLLED ROTATION.
Practice
Quiz
What is the primary advantage of a linear induction motor in transport applications?