AMMONIUM

A name given by Davy to the hypothetical base (supposed to be metallic) of ammonia. According to the hypothesis of Berzelius, ammonium is a compound of1 volume of nitrogen with 4 volumes of hydrogen. The AMMO PHIL A.name of a genus(Gr.ofdjiyioi,hymenopterous sand, and fiXcw,'insects,/ called love.i sand-wasps. The generic characters are,; inflected, concealing a bifid, retractile, tubular tongue; jaws forcipated, 3-toothed at ihe tip; antenna? filiform in each sex, wilh about 1-1 articulations; >•)■ plane: sting pungent, concealed wilhin die abdomen. [s. 54]