IPA: //ˌsaɪənˈtɪfɪkli//
KK: /ˌsaɪənˈtɪfɪkli/
In a way that is based on or related to science and its methods.
The experiment was conducted scientifically to ensure accurate results.
Scientifically → It is formed from "scientia" (meaning knowledge) and the suffix "-fic" (meaning making or causing) combined with the adverbial suffix "-ally" (meaning in a manner). The word "scientifically" means in a manner that relates to or is based on knowledge or science.
Think of 'knowledge' ('scientia') and how something is 'made' or 'caused' ('-fic') to remember that 'scientifically' means doing something in a way that is based on knowledge or science.