Asteroid

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masculine noun / adjective (astronomy)

Definition

A rocky or metallic celestial body, much smaller than a planet, orbiting the Sun, with most clustered in the main belt between Mars and Jupiter; as an adjective, it describes an object, organism, or structure exhibiting a stellar shape or star-like radial symmetry.

Bilingual Equivalents

  • Asteroid
  • Minor planet

Grammatical & Source Details

Inflection Type Masculine noun or variable adjective, transforming regularly from singular to structural plural forms.
Formation Coined from Ancient Greek 'aster' (star) and the suffix '-eides' (resembling), popularized via French astronomical texts.
Spelling / Pronunciation [as.te.ro.ˈjd]
Source IAU Compendium of Astronomical Nomenclature & Modern Academic Romanian Manuals

Contextual Usage Examples

RO: Un asteroid de mari dimensiuni a trecut la o distanță sigură de atmosfera Pământului, fiind monitorizat de observatoarele din întreaga lume.

EN: A large asteroid passed at a safe distance from Earth's atmosphere, being monitored by observatories worldwide.

RO: Sonda spațială trimisă de NASA a colectat cu succes eșantioane de praf de pe suprafața stâncoasă a acelui asteroid.

EN: The space probe sent by NASA successfully collected dust samples from the rocky surface of that asteroid.

RO: În zoologia timpurie, organismele cu brațe radiate primeau adesea o descriere structurală de tip asteroid.

EN: In early zoology, organisms with radiate arms often received an asteroid-type structural description.

Idioms & Phrases

Centura de asteroizi / Asteroid belt

RO: Regiune vastă din sistemul solar situată între orbitele planetelor Marte și Jupiter, ce adăpostește milioane de corpuri stâncoase.

EN: A vast region in the solar system located between the orbits of Mars and Jupiter, hosting millions of rocky bodies.

Impact de asteroid / Asteroid impact

RO: Coliziune ipotetică sau istorică a unui corp planetoidar cu suprafața terestră, capabilă să provoace schimbări climatice majore.

EN: A hypothetical or historical collision of a planetoid body with Earth's surface, capable of causing major climatic changes.

Asteroid troian / Trojan asteroid

RO: Corp ceresc minor care împarte aceeași orbită cu o planetă mai mare, fiind blocat stabil în punctele de echilibru Lagrange.

EN: A minor celestial body sharing the same orbit as a larger planet, stably locked within Lagrange equilibrium points.

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