n.
Pronunciation: p ə - ˌ li-m ə -r ə - ' z ā -sh ə n, ˌ pä-l ə -m ə -r ə -
Function: noun
Etymology: International Scientific Vocabulary
Date: 1872
1 : a chemical reaction in which two or more molecules combine to form larger molecules that contain repeating structural units ― compare ASSOCIATION 5
2 : reduplication of parts in an organism