hg

Noun hg has 2 senses

• hg(n = noun.substance) atomic number 80, hydrargyrum, mercury, quicksilver - a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures;
is a kind of metal, metallic element

• hg(n = noun.quantity) hectogram - 100 grams;
is a kind of metric weight unit, weight unit
has parts: dag, decagram, dekagram, dkg
is a part of kg, kilo, kilogram