This is the 6897th most frequent Russian word.
академический
"Academic" - relating to education, scholarly pursuits, or an academy.
The word 'академическую' is used as an adjective to describe something related to academic studies or scholarship, here modifying 'статью' (article).
Он написал академическую статью о развитии биологии.
He wrote an academic article on the development of biology.
The word 'академический' describes 'подход' (approach), emphasizing a methodical or scholarly methodology.
Её академический подход к изучению нового был эффективным.
Her academic approach to studying the new material was effective.
Here, 'академической' refers to 'речи' (speech), indicating a formal or scholarly-style address.