Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
terrestrially is an adverb meaning "in a worldly manner". It carries 2 recorded senses.
to a land environment
“terrestrially adapted”
Definitions, synonyms and semantic relations for terrestrially come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.