Definition of pyrotechnically in English:

pyrotechnically

Pronunciation /ˌpʌɪrə(ʊ)ˈtɛknɪkli/

adverb

  • With regard to pyrotechny; by pyrotechnical means; in a pyrotechnical manner (chiefly figurative).

Origin

Early 19th century; earliest use found in The Times. From pyrotechnical + -ly.