12-Letter Words Containing: SPH

• The soil region subject to the influence of plant roots and their associated microorganisms

• A mechanical device used to measure blood pressure and pulse.

• tending to deprive of oxygen

• the condition of being deprived of oxygen (as by having breathing stopped)

• killing by depriving of oxygen

• a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun

• any of various compounds composed of fatty acids and phosphoric acid and a nitrogenous base; an important constituent of membranes