0%

d layer

d lay·er
D d

Transcription

    • US Pronunciation
    • US IPA
    • [dee ley-er]
    • /di ˈleɪ ər/
    • US Pronunciation
    • US IPA
    • [dee ley-er]
    • /di ˈleɪ ər/

Definitions of d layer words

  • noun d layer the lowest area of the ionosphere, having increased ion density and existing only in the daytime: it begins at an altitude of about 70 km (c. 43 mi) and merges with the E layer 3
  • noun d layer the lowest region of the ionosphere, characterized by mounting electron and ion density: exists, during the day only, from about 43 to 50 miles (70 to 80 km) altitude. 1

Information block about the term

Origin of d layer

First appearance:

before 1930
One of the 10% newest English words
First recorded in 1930-35

Historical Comparancy

Parts of speech for D layer

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

d layer popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 51% of English native speakers know the meaning and use word.
According to our data about 55% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

d layer usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

Matching words

Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?