planetesimal

1. 1.

   one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system

   Broadercelestial body

Other forms of planetesimal

plural

planetesimals·

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about planetesimal

What does planetesimal mean?

planetesimal means "one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system".

How many syllables are in planetesimal?

planetesimal has 5 syllables: pla-ne-te-si-mal. The stress falls on "te".

Is planetesimal a common word?

planetesimal is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.