rb
English Thesaurus
1. a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite (noun.substance)
hypernym | : | metal, metallic element, |
definition | : | any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. (noun.substance) |
substance meronym | : | carnallite, |
definition | : | a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium (noun.substance) |
substance meronym | : | lepidolite, |
definition | : | a mineral of the mica group; an important source of lithium (noun.substance) |
substance meronym | : | pollucite, |
definition | : | a rare mineral that is an important source of cesium (noun.substance) |
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