Found 2 items, similar to lanthanide.
English → English (WordNet) Definition: lanthanide lanthanide n : any element of the lanthanide series (atomic numbers 57 through 71) [syn: rare earth, rare-earth element, lanthanoid, lanthanon]
English → English (gcide) Definition: lanthanide lanthanide \lanthanide\ n. Any rare earth element of the lanthanide series (atomic numbers 57 through 71). Syn: rare earth, rare-earth element, lanthanon. [WordNet 1.5]