First Known Use: 1818
Dictionary
lithium
noun lith·i·um \ˈli-thē-əm\
: a soft silver-white element that is the lightest metal known
Full Definition of LITHIUM
1
: a soft silver-white element of the alkali metal group that is the lightest metal known and that is used especially in alloys and glass, in chemical synthesis, and in storage batteries — see element table
2
: a salt of lithium (as lithium carbonate) used in psychiatric medicine
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Origin of LITHIUM
New Latin, from lithia oxide of lithium, from Greek lithos
Medical Dictionary
lithium
noun lith·i·um \ˈlith-ē-əm\
Medical Definition of LITHIUM
1
: a soft silver-white element of the alkali metal group that is the lightest metal known and that is used in chemical synthesis and in storage batteries—symbol Li; see element table
2
: a lithium salt and especially lithium carbonate used in psychiatric medicine
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