a startchy white substance sounds like flour
Another name for a substance is a material.
White Gold is another name for Platinum.
it contains myelin sheath which is a fatty white substance
Element
Another name for a white ant, which is used by Australians, is termite.
Another name for white blood cells are " Lymphnoytes"
pulp
Homogeneous
White literally means colorless. For synonyms see the following site: http://www.thefreedictionary.com/white
The White ant is an Australian name for termite.
Rice
Another name for "white man's burden" was "civilizing mission."