Words Containing: I,O,R,Z

• a horizontal plant stem with shoots above and roots below serving as a reproductive structure

• any of various slender filaments that function as roots in mosses and ferns and fungi etc

• the line at which the sky and Earth appear to meet

• the range of interest or activity that can be anticipated

• a specific layer or stratum of soil or subsoil in a vertical cross section of land

• the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth

• having or causing a whirling sensation; liable to falling