Ablative
Part of speech: noun
Definition: The ablative case.
Part of speech: adjective
Definition: Taking away or removing Applied to one of the cases of the noun in Latin and some other languages, such as Finnish, -- the fundamental meaning of the case being removal, separation, or taking away. Sacrificial, wearing away or being destroyed in order to protect the underlying, as in ablative paints used for antifouling.
Subtractive
Part of speech: adjective
Definition: Of or pertaining to subtractionDescribing a colour, from which some wavelengths have been removed