Last updated on October 2, 2020 by

Evanescent 1100 Words You Need Week 33 Day 3

Evanescent 1100 Words You Need Week 33 Day 3

Evanescent 1100 Words You Need Week 33 Day 3 with authentic materials and examples, synonyms, antonyms, illustrated flashcards and text-to-speech for GRE, TOEFL & IELTS

/ˌiː.vəˈnes.ənt/ US /ˌev.ə-/ (adj)

lasting for a short time, ephemeral, short-lived, impermanent, transient, fleeting, momentary, passing, brief

In electromagnetics, an evanescent field, or evanescent wave, is an oscillating electric and/or magnetic field that does not propagate as an electromagnetic wave but whose energy is spatially concentrated in the vicinity of the source (oscillating charges and currents). Even when there is a propagating electromagnetic wave produced (e.g., by a transmitting antenna), one can still identify as an evanescent field the component of the electric or magnetic field that cannot be attributed to the propagating wave observed at a distance of many wavelengths (such as the far field of a transmitting antenna).


Antonym: permanent

Adverb: evanescently

Noun: evanescence

About Dr. Mohammad Hossein Hariri Asl

Dr. Mohammad Hossein Hariri Asl is an English and Persian instructor, researcher, inventor, author, blogger, SEO expert, website developer, and the creator of LELB Society. He's got a PhD in TEFL (Teaching English as a Foreign Language). Study our guest posting guidelines for authors.

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