A falling off, decay or descent.
A way of categorizing nouns, pronouns, or adjectives according to the inflections they receive.
The product of that act; a list of declined forms.
The act of declining a word; the act of listing the inflections of a noun, pronoun or adjective in order.
The process of extracting the oxygen content of a dissolved oxide, or of removing dissolved oxygen, with the aid of a reducing agent.