8-Letter Words Starting: TH

• a hard blow with a flat object

• deliver a hard blow to

• hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells

• any of a group of drugs commonly used as diuretics in the treatment of hypertension; they block the reabsorption of sodium in the kidneys

• to believe especially on uncertain or tentative grounds

• construct a theory about

• form or construct theories

• Any of a class of unsaturated heterocyclic compounds containing a ring of three carbon atoms, a sulphur and an nitrogen atom; especially the simplest one, C3H3SN

• a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom