(inorganic chemistry) Any of the elements of group II of the periodic table; they are low-density metals that react readily with water to form strongly basic hydroxides, and with many acids to form salts.

(North American countries) April 22; Created in 1970, global day of observance of the need to protect the earth. / (obsolete, US) March 21st.

(transitive) to provide or add soil to / (transitive) to make earthly or earthlike

Made of earth or mud. / Made of clay (especially said of pottery). / (archaic) Earthly.

(idiomatic) Practical; realistic; pragmatic. / (idiomatic) Ordinary; normal; run-of-the-mill.

plural of alkaline earth metal

(idiomatic) A very unpleasant situation; torment, particularly when widespread.

(fiction) The main setting of J.R.R. Tolkien's Lord of the Rings and other works. / Alternative form of Middle Earth: the Earth.

(chemistry) Any of the naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc.

(chemistry) Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts; they include the lanthanides plus yttrium, scandium, thorium and sometimes zirconium.