 The names of many units used during the ancient regime were reintroduced, but were redefined in terms of metric units.Thus the was defined as being two metres with six making up one "toise", twelve making up one "pied" and twelve making up one "pouce".Likewise the was defined as being 500 g, each "livre" comprising sixteen "once" and each "once" eight "gros" and the "aune" as 120 centimetres.