dielectrics - Master This Word
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dielectrics Word Meanings
- a substance that does not conduct electricity but can be polarized by an electric field
- a material used in capacitors and insulators
dielectrics Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
- A dielectric is a material that does not conduct electricity.
- Many insulators are good dielectrics.
- We use dielectrics in capacitors.
- The air can act as a dielectric in some cases.
- Dielectrics are important in electronics and devices.
dielectrics Phonetic & Pronunciation
UK
/ˌdaɪ.ɪˈlɛk.trɪk/
US
/ˌdaɪ.əˈlɛk.trɪk/
dielectrics Word Etymology
Root decomposition: 'dia-' (through) + 'electric' (related to electricity). Historical origin: from Greek 'dia' + 'ēlektron' (amber) to Latin, then Old French to English. Memory image: Imagine an electric field flowing through an insulator like water through a pipe, but it can’t flow; it just creates a calm surface effect.
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
A dielectric is a noun for a substance that does not conduct electricity but can be polarized by an electric field. In electronics, dielectrics are used to store energy and insulate components; between capacitor plates, a dielectric layer increases capacitance by reducing the electric field leakage while preventing current flow. The term comes from Greek dia (through) + ēlektron (amber), later entering English via Latin and French. A handy image is to picture the field passing through a nonconductive medium that can shift its molecular orientation but cannot carry charge across. This polarized response enables devices to function without a steady current.
Usage Reminders
- Keep dielectric and insulator distinct; think polarization, not conduction. Use with capacitor, not just power supply. Mention dielectric constant when discussing capacity. Avoid conflating with conductor. Pronounce as die-uh-LEK-trik. Relate to polarization under voltage. Practice with technical texts.
Common Misconceptions
- A dielectric conducts electricity like a metal.
- All insulators are dielectric in every context.
- Dielectric means a material that always blocks all electrical effects.
- The dielectric constant is the same for all frequencies.
- Capacitance is only about voltage, not energy storage.
Thinking Differences
Explain to an English speaker: Dielectric is a nonconductive, polarizable material used in electronics; learners often mix it up with 'insulator' or think it always blocks all electrical effects. Emphasize context: capacitors, polarization, and dielectric constant.
Learning Tips
- Practice the pronunciation: die-uh-LEK-trik.
- Relate dielectric to polarization rather than conduction.
- Connect dielectric to capacitors and insulators in electronics.
- Learn the related terms: dielectric constant, polarization, insulator.
- Read simple physics or electronics passages to see usage.
- Create your own example sentences using dielectric.
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