IPA: /ˌstɛr.i.oʊˈtæk.sɪ.kli/
KK: /ˌstɛrɪoʊˈtæksɪkli/
In a way that relates to a method used to locate specific areas in the brain or other parts of the body with precision.
The surgeon operated stereotaxically to ensure accuracy in targeting the tumor.
Stereotaxically → It is formed from "stereo-" (from Greek "stereos", meaning solid or three-dimensional) and "taxis" (from Greek "taxis", meaning arrangement or order) combined with the adverbial suffix "-ically" (meaning in a manner relating to). The term refers to a method that involves the precise arrangement or positioning in three-dimensional space, often used in medical contexts such as neurosurgery.
Think of 'solid' ('stereo-') and 'arrangement' ('taxis') to remember that 'stereotaxically' means arranging something in a precise three-dimensional manner.