9-Letter Words Containing: P,E,T,A,R,D

• a quadrilateral with two parallel sides

• the wrist bone between the trapezium and the capitate bones

• moral perversion; impairment of virtue and moral principles

• a corrupt or depraved or degenerate act or practice

• a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine

• having or showing knowledge and skill and aptitude

• skillful after much practice