'lanthanon' definitions:
Definition of 'lanthanon'
From: WordNet
noun
Any element of the lanthanide series (atomic numbers 57 through 71) [syn: rare earth, rare-earth element, lanthanoid, lanthanide, lanthanon]
Definition of 'lanthanon'
From: GCIDE
- lanthanon \lanthanon\ n. Same as lanthanide.
- Syn: rare earth, rare-earth element, lanthanide. [WordNet 1.5]