Thyroid Hormone Tests. Test Overview. Thyroid hormone tests are blood tests that check how well the thyroid gland is working. The thyroid gland makes hormones that regulate the way the body uses energy. The thyroid gland is a butterfly-shaped gland that lies in front of your windpipe (trachea), just below your voice box (larynx).
A clean room (or cleanroom) is an enclosed space in which airborne particulates, contaminants, and pollutants are kept within strict limits. In industry, clean rooms are used in the manufacture and...
1 An example of clean is a room that has just been vacuumed and dusted. 2  An example of clean os someone who is in Alcoholics Anonymous and who has been sober for four months.  An example of clean is a joke that has no sexual connotations or adult material.