planetoid
Word Rarity
Very rare
Frequency: Zipf frequency 1.91 in modern English
12
Scrabble Score
9
Letters
3
Syllables
9
Unique Chars
Meaning
noun
An asteroid-like body in an orbit beyond the asteroid belt, such as a centaur or Kuiper belt object
Dated
noun
A larger, planetary, body in orbit around the Sun, such as Vesta or (candidate) dwarf planets such Eris or Sedna
noun
Any planetary body, including classical planets and moons: a planetary-mass object
noun
Example Sentences
- "The group of small bodies that circle round the Sun, outside the orbit of Mars, are known under the designation of the planetoids."
- "Numbering of the Planetoids or Asteroidal Planets.—In numbering the planetoids a difficulty has arisen [...]"
- "if one can argue for the early existence of a few largely molten planetoids with dimension of kilometers or tens of kilometers, one can quite as easily argue for very large numbers of such planetoids."
- "After discovering "planetoids", bodies orbiting the Sun, even larger than Pluto's moon Charon ... the question of how Sedna and other planetoids came to be."
- "Eris [...] was the upstart planetoid that knocked Pluto off the planetary lists"
- "Plate tectonics is a style of convection for an active planetoid where lid fragment (plate) motions reflect sinking of dense lithosphere in subduction zones […] In 2015 humanity completed a 50+ year effort to survey the 30 largest planets, asteroids, satellites, and inner Kuiper Belt objects, which we informally call “planetoids”."
Etymology
Etymology tree English planet Ancient Greek -ο- (-o-)der. Latin -o- Proto-Indo-European *weyd- Proto-Indo-European *-os Proto-Indo-European *wéydos Proto-Hellenic *wéidos Ancient Greek εἶδος (eîdos) Proto-Indo-European *-os Proto-Indo-European *-ēs Proto-Hellenic *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Latin -oīdēslbor. English -oid English planetoid From planet + -oid.