f region

f re·gion

F f

Transcription

- US Pronunciation
- US IPA
- [ef ree-juh n]
- /ɛf ˈri dʒən/

- US Pronunciation
- US IPA
- [ef ree-juh n]
- /ɛf ˈri dʒən/

Definitions of f region words

noun f region the ionospheric region in which the F layer forms. 1
noun f region the highest region of the ionosphere, extending from a height of about 150 kilometres to about 1000 kilometres. It contains the highest proportion of free electrons and is the most useful region for long-range radio transmission 0
noun f region the highest atmospheric zone within the ionosphere, at an altitude of c. 140 to 400 km (c. 90 to 250 mi), containing the F layers 0

See all 3 definitions of f region

Information block about the term

Origin of f region

First appearance:

before 1925

One of the 11% newest English words

First recorded in 1925-30

Historical Comparancy

Parts of speech for F region

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of F region

f region popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 47% of English native speakers know the meaning and use word.

According to our data about 63% 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.

f region usage trend in Literature

This diagram is provided by Google Ngram Viewer