Dictionary

protoplanet en · NOUN

Etymology

Etymology tree Proto-Indo-European *per-der.? Proto-Indo-European *per-der.? Proto-Indo-European *pér Proto-Indo-European *-o Proto-Indo-European *próder. Ancient Greek πρό (pró) Ancient Greek -ᾰτος (-ătos) Ancient Greek πρῶτος (prôtos) Ancient Greek πρωτο- (prōto-)lbor. English proto- English planet English protoplanet From proto- + planet.

Meanings

1. An astronomical object, approximately the size of the Moon, formed from the mutual gravitational attraction of planetesimals; they are thought to collide with each other and slowly form planets
   • Tyrix, one of the largest objects in Thal's asteroid belt, is a metallic asteroid with an iron-nickel core under a rocky olivine mantle. It is possibly a remnant protoplanet prevented from forming into anything bigger by gravitational disturbances from Xerceo. 2012, BioWare, Mass Effect 3 (Science Fiction), Redwood City: Electronic Arts, →OCLC, PC, scene: Tyrix:

Forms

Deriveds

protoplanetary

Translations (23)

fr protoplanète (astronomical object) · de Protoplanet (astronomical object) · ca protoplaneta (astronomical object) · lt proplaneta (astronomical object) · ja 原始惑星 (astronomical object) · ro protoplanetă (astronomical object) · fi protoplaneetta (astronomical object) · cmn 原行星 (astronomical object) · pt protoplaneta (astronomical object) · pl protoplaneta (astronomical object) · ru протоплане́та (astronomical object) · io protoplaneto (astronomical object) · es protoplaneta (astronomical object) · ga prótapláinéad (astronomical object) · it protopianeta (astronomical object) · cs protoplaneta (astronomical object) · kea protoplaneta (astronomical object) · sk protoplanéta (astronomical object) · kea protoplanita (astronomical object) · no protoplanet (astronomical object) · hi आदिग्रह (astronomical object) · kea protoplaneta (astronomical object) · sv protoplanet (astronomical object)