lanthanide
[ lan-thuh-nahyd, -nid ]
/ ˈlæn θəˌnaɪd, -nɪd /
noun Chemistry.
any element of the lanthanide series.
Also called
lan·tha·non
[lan-thuh-non] /ˈlæn θəˌnɒn/.
Origin of lanthanide
First recorded in 1925–30;
lanthan(um) +
-ide
Words nearby lanthanide
lantern slide,
lantern wheel,
lantern-jawed,
lanternfish,
lanternfly,
lanthanide,
lanthanide series,
lanthanum,
lanthorn,
lantsang,
lanuginose
British Dictionary definitions for lanthanide
lanthanide
lanthanon (ˈlænθəˌnɒn)
/ (ˈlænθəˌnaɪd) /
noun
any element of the lanthanide series
Also called: rare earth, rare-earth element
Word Origin for lanthanide
C19: from
lanthanum +
-ide
Medical definitions for lanthanide
lanthanide
[ lăn′thə-nīd′ ]
n.
Any of the chemically related elements with atomic numbers 57 through 71.
rare earth rare-earth element
Scientific definitions for lanthanide
lanthanide
[ lăn′thə-nīd′ ]
Any of a series of 15 naturally occurring metallic elements. The lanthanides include elements having atomic numbers 57 (lanthanum) through 71 (lutetium). They are grouped apart from the rest of the elements in the Periodic Table because they all behave in a similar way in chemical reactions. Also called rare-earth element See Periodic Table.