Something which contaminates.
A process whereby words with related meanings come to have similar sounds.
The influence of one form (often from a foreign language) on the historical development of another form to which it may be related in meaning.
The act or process of contaminating
The process of making a material or surface unclean or unsuited for its intended purpose, usually by the addition or attachment of undesirable foreign substances.
A foreign substance that makes something dirty, or impure, especially waste from human activities.