This is the 12502nd most frequent Turkish word.
hücrelerinde
"In its/her/his cells."
Here, 'hücrelerinde' expresses 'in the cells' of something, indicating location within biological cells.
Vücudumuzun hücrelerinde enerji üretilir.
Energy is produced in the cells of our body.
In this metaphorical sense, 'hücrelerinde' refers to compartments or spaces metaphorically seen as cells.
Kitabın sayfalarının arasındaki yazılar hücrelerinde saklanıyordu.
The writings between the pages of the book were hidden in its cells.
In this usage, 'hücrelerinde' refers to individual cells in a prison, indicating physical locations.