Appleton layer
/ˈaplt(ə)n ˌleɪə/Atmospheric Physics. Now disused
noun
The upper or F stratum of the ionosphere, above the E (or Heaviside) layer; = F-layer.
- Appleton himself used the term F-layer for this stratum..
Origin
1930s; earliest use found in The Fresno Bee. From the name of Edward V. Appleton, British physicist, who discovered the layer + layer.
- empty-headedness
- empty-hearted
- empty nester
- empty net
- empty-netter
- empty-pated
- empty promise
- Empty Quarter
- empty-skulled
- empty suit
- empty vessels make most noise (or sound)
- empty word
- empurple
- empusa
- empyema
- empyematic
- empyematous
- empyemic
- empyreal
- empyrean
- empyreum
- empyreuma
- empyreumatic
- empyrical
- empyrosis