protogalaxyn.

Brit.

/ˈprəʊtə(ʊ)ɡaləksi/, U.S.

/ˈproʊdoʊˌɡæləksi/

Origin: Formed within English, by compounding. Etymons: proto- comb. form, galaxy n.

Etymology: < proto- comb. form + galaxy n. (see quot. 1953). Compare protogalactic adj.

Astronomy.

A vast mass of gas, contracting under its own gravity but not yet (or not extensively) formed into stars, postulated as a preliminary stage in the evolution of a galaxy.

ΘΚΠ

the world > the universe > constellation > galaxy > [noun] > protogalaxy

protocluster1953

protogalaxy1953

protocloud1970

1953 D. ter Haar in Sci. Monthly Dec. 285/2 The universe may be divided into many rotating subsystems which we shall call protogalaxies.

1959 Astrophysical Jrnl. 130 43 These nuclei had already originated before the protogalaxy condensed into stars.

1988 J. Trefil Dark Side of Universe iv. 63 These protogalaxies would then clump together under the influence of gravity to form full-fledged galaxies.

1998 New Yorker 26 Oct. 108/3 Are they protogalaxies forming near the beginning of time?

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	protogalaxy
释义	protogalaxyn. Brit. /ˈprəʊtə(ʊ)ɡaləksi/, U.S. /ˈproʊdoʊˌɡæləksi/ Origin: Formed within English, by compounding. Etymons: proto- comb. form, galaxy n. Etymology: < proto- comb. form + galaxy n. (see quot. 1953). Compare protogalactic adj. Astronomy. A vast mass of gas, contracting under its own gravity but not yet (or not extensively) formed into stars, postulated as a preliminary stage in the evolution of a galaxy. ΘΚΠ the world > the universe > constellation > galaxy > [noun] > protogalaxy protocluster1953 protogalaxy1953 protocloud1970 1953 D. ter Haar in Sci. Monthly Dec. 285/2 The universe may be divided into many rotating subsystems which we shall call protogalaxies. 1959 Astrophysical Jrnl. 130 43 These nuclei had already originated before the protogalaxy condensed into stars. 1988 J. Trefil Dark Side of Universe iv. 63 These protogalaxies would then clump together under the influence of gravity to form full-fledged galaxies. 1998 New Yorker 26 Oct. 108/3 Are they protogalaxies forming near the beginning of time? This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1953
随便看	oryctognostical oryctognostically oryctognosy oryctographic oryctographical oryctographically oryctography oryctological oryctologist oryctology oryctozoological oryctozoology orygine oryx oryxes oryzenin oryzivorous orzo orzos os os calcis os centrale os coxae os externum os frontis