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Showing words for LANTHANUM using the English dictionary
9 Letter Words for Lanthanum
7 Letter Words for Lanthanum
6 Letter Words for Lanthanum
5 Letter Words for Lanthanum
4 Letter Words for Lanthanum
3 Letter Words for Lanthanum
Definitions for Lanthanum
[1] a rare-earth, trivalent, metallic element, allied to aluminum, found in certain minerals, as monazite. Symbol : La; atomic weight : 138.91; atomic number : 57; specific gravity : 6.15 at 20°C.
[2] a silvery-white ductile metallic element of the lanthanide series, occurring principally in bastnaesite and monazite: used in pyrophoric alloys, electronic devices, and in glass manufacture. Symbol: La; atomic no: 57; atomic wt: 138.9055; valency: 3; relative density: 6.145; melting pt: 918°C; boiling pt: 3464°C
Words nearby Lanthanum
lantern-jawed, lanternfish, lanternfly, lanthanide, lanthanide series, lanthanum, lanthorn, lantsang, lanuginose, lanuginous, lanugo
Origin of Lanthanum
< New Latin (1841), equivalent to lanthan- (< Greek lanthánein to escape notice; referring to its position on the periodic table) + -um, variant of -ium -ium
Word origin for Lanthanum
C19: New Latin, from Greek lanthanein to lie unseen