Subtractive
Part of speech: adjective
Definition: Of or pertaining to subtraction Describing a colour, from which some wavelengths have been removed
Ablative
Part of speech: noun
Definition: The ablative case.
Part of speech: adjective
Definition: Taking away or removingApplied 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.