dimethyl polysiloxane

[dī-mĕth′əl pŏl′ē-sĭ-lŏksān′]


A polymer composed of alternating silicon and oxygen atoms and having two methyl groups attached; it can, depending on molecular weight, have properties ranging from oils to plastics.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.