Ablation(n.) A carrying or taking away; removal.
Ablation(n.) Extirpation.
Ablation(n.) Wearing away; superficial waste.
Ablative() The ablative case.
Ablative(a.) Taking away or removing.
Ablative(a.) Applied to one of the cases of the noun in Latin and some other languages, -- the fundamental meaning of the case being removal, separation, or taking away.

Words within ablator