Noun

(en noun)

(organic chemistry) A long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar small molecules called monomers. A polymer is formed by polymerization, the joining of many monomer molecules.

A material consisting of such polymer molecules.

* {{quote-magazine, year=2013, month=May-June, author= Charles T. Ambrose

, title= Alzheimer’s Disease , volume=101, issue=3, page=200, magazine=(American Scientist) , passage=Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.}}

Noun

(en noun)

(biology) Any color in plant or animal cells

Chlorophyll is the pigment responsible for most plants' green colouring.

A dry colorant, usually an insoluble powder

Umber is a pigment made from clay containing iron and manganese oxide.

(obsolete) Wine flavoured with spices and honey.

(Sir Walter Scott)