> as lemmas
proto-Earth
proto-Earth n.
Brit. 
/ˌprəʊtəʊˈəːθ/
, /ˌprəʊtəʊˈəːθ/U.S. /ˌproʊdoʊˈərθ/
Astronomy the earth at an early stage of its development./ˌproʊdoʊˈərθ/ΘΚΠ
the world > the universe > planet > primary planet > earth > [noun] > earliest form of
proto-Earth1950
1950 Science 20 Oct. 452/2 Proto-Earth appears to have been about 1,200 times the Earth mass; proto-Jupiter about 12 times Jupiter.
1969 Times 18 July 6/4 The proto-earth may have swept up from the dust cloud much more silicate material than it now possesses.
1992 S. P. Maran Astron. & Astrophysics Encycl. 606/2 Pierre Simon de Laplace proposed that the Moon condensed from a ring spun off from a rotating gaseous proto-Earth.
<
as lemmas
- quarter ducat
- quarter eagle
- quarter evil
- quarter face
- quarter fairy
- quarter fast
- quarter feast
- quarter fee
- quarter flood
- quarter girth
- quarter girth measure
- quarter grain
- quarter ground
- quarter guard
- quarter heel
- quarter hoop
- quarter horse
- quarter hour
- quarter ill
- quarter jack
- quarter knee
- quarter ladder
- quarter leather
- quarter left
- quarter line