Crosswords Solver

Answer: siloxane
Answer	Crossword Clue
siloxane	any of the class of compounds containing the structural unit R2SiO, where R is an organic group or hydrogen
siloxane	any of various compounds containing alternate silicon and oxygen atoms in either a linear or cyclic arrangement usually with one or two organic groups attached to each silicon atom

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.

Answer: siloxane