10-Letter Words Containing: O,U,R,A,S

• (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon

• in a square position

• with firmness and conviction; without compromise

• characterized by firm and unwavering conviction

• grant authorization or clearance for

• give or delegate power or authority to

• widely distributed tree of eastern Australia yielding a tough durable fiber and soft light attractively grained wood; foliage is an important emergency food for cattle

• of or relating to an aquifer

• offering or expressing apology

• tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medicinally

• Any microorganism that has lost the ability to synthesize an organic compound required for its growth, usually as a result of mutation