Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
planetal is an adjective meaning "of or relating to or resembling the physical or orbital characteristics of a planet or the planets". It carries one recorded sense.
of or relating to or resembling the physical or orbital characteristics of a planet or the planets
“planetary motion”
“planetary year”
Definitions, synonyms and semantic relations for planetal come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.