Akademik

centrales
\\sen.ˈtrā(ˌ)lēz\ noun plural
Usage: capitalized
Etymology: New Latin, from Latin centrum center + New Latin -ales
: an order of diatoms having cylindrical disklike or even-angular cells always lacking a raphe or pseudoraphe and having radial markings and often spines — compare pennales

Useful english dictionary. 2012.