Abuur nooc ka sii adag weedhan Alunogen oo sidoo kale loo yaqaan feather alum iyo cusbada timaha waa midab aan midab lahayn ilaa caddaan (in kasta oo inta badan midabkeedu yahay wasakh, sida birta oo beddeleysa aluminium) oo leh fiilooyin u eg aluminium sulfate macdan.
Dabcan, nooc ka sii adag ee jumlada waa "Alunogen oo sidoo kale loo yaqaan feather alum iyo cusbada timaha waa midab aan midab lahayn ilaa caddaan (in kasta oo inta badan midabkeedu yahay wasakh, sida birta oo badalaysa aluminium) macdanta aluminium sulfate-ka ah ee loo yaqaan 'needle-like aluminium sulfate mineral' oo badanaa laga helo darbiyada miinooyinka iyo dhagax-dhimista macdanta labaad. "