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protoplanet

Upper-Intermediate (B2)

IPA: /ˈproʊtəˌplænɪt/

KK: /ˈproʊtəˌplænɪt/

noun
Definition

A large object in space that is forming into a planet, created from smaller pieces that come together due to gravity.


Example

Scientists believe that protoplanets play a crucial role in the formation of solar systems.


Conversation
Sloth A
Have you ever heard about how a protoplanet forms in space?
Sloth B
Yeah, I read that they start from smaller objects colliding together.
Sloth A
Exactly! It's fascinating that they can eventually become full-fledged planets.
Sloth B
Right? It makes you think about how our own planet was formed.

Synonyms & Antonyms
Synonyms
planetesimal
embryo
nucleus
Antonyms
debris
fragment
dust
Root Explanation

Protoplanet → It is formed from "proto-" (from Greek "protos", meaning first) and "planet" (from Greek "planetes", meaning wanderer). The word "protoplanet" refers to a celestial body that is in the early stages of forming into a planet, essentially meaning the first stage of a planet's development.

Memory Tip

Think of 'first' ('proto-') in the context of a 'wanderer' ('planetes') to remember that a protoplanet is an early stage in the formation of a planet.

Visually Confused Words
rotatoplane
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