protoplanetaryadj.

Brit.

/ˌprəʊtə(ʊ)ˈplanᵻt(ə)ri/, U.S.

/ˌproʊdoʊˈplænəˌtɛri/

Origin: Formed within English, by compounding; partly modelled on a Russian lexical item. Etymons: proto- comb. form, planetary adj.

Etymology: < proto- comb. form + planetary adj., partly (in quot. 1957) after Russian protoplanetnyj (1957 in the passage translated), and partly after protoplanet n.

Astronomy.

Of, relating to, or of the nature of a protoplanet.

ΘΚΠ

the world > the universe > planet > [adjective]

planetical?a1563

planetary1593

planetal1624

planetic1631

planetarian1652

planeted1745

planetocentric1856

preplanetary1869

protoplanetary1957

1957 A. Synge tr. A. I. Oparin Origin Life on Earth iv. 139 After the Sun had become a luminescent star and the discoid protoplanetary cloud had been formed, different conditions of temperature were set up in different regions of the cloud.

1962 Lancet 13 Jan. 89/1 Meteorites are generally assumed to have originated by the disruption of protoplanetary bodies in the region now occupied by the asteroids.

2003 Connecting Quarks with Cosmos (U.S. National Res. Council: Div. Engin. & Phys. Sci.) i. 11 Stars and galaxies evolved, enriching their protoplanetary gas clouds and eventually planets with the chemical products of stellar evolution.

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

单词	protoplanetary
释义	protoplanetaryadj. Brit. /ˌprəʊtə(ʊ)ˈplanᵻt(ə)ri/, U.S. /ˌproʊdoʊˈplænəˌtɛri/ Origin: Formed within English, by compounding; partly modelled on a Russian lexical item. Etymons: proto- comb. form, planetary adj. Etymology: < proto- comb. form + planetary adj., partly (in quot. 1957) after Russian protoplanetnyj (1957 in the passage translated), and partly after protoplanet n. Astronomy. Of, relating to, or of the nature of a protoplanet. ΘΚΠ the world > the universe > planet > [adjective] planetical?a1563 planetary1593 planetal1624 planetic1631 planetarian1652 planeted1745 planetocentric1856 preplanetary1869 protoplanetary1957 1957 A. Synge tr. A. I. Oparin Origin Life on Earth iv. 139 After the Sun had become a luminescent star and the discoid protoplanetary cloud had been formed, different conditions of temperature were set up in different regions of the cloud. 1962 Lancet 13 Jan. 89/1 Meteorites are generally assumed to have originated by the disruption of protoplanetary bodies in the region now occupied by the asteroids. 2003 Connecting Quarks with Cosmos (U.S. National Res. Council: Div. Engin. & Phys. Sci.) i. 11 Stars and galaxies evolved, enriching their protoplanetary gas clouds and eventually planets with the chemical products of stellar evolution. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < adj.1957
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