Definition of LANTHANOID

lanthanoid

Plural: lanthanoids

Noun

  • any element of the lanthanide series (atomic numbers 57 through 71)
  • Synonym of lanthanide.

Origin / Etymology

From lanthanum + -oid.

Synonyms

lanthanide, lanthanon, rare earth, rare-earth element

Scrabble Score: 14

lanthanoid is a valid Scrabble (US) TWL word
lanthanoid is a valid Scrabble Word in Merriam-Webster MW Dictionary
lanthanoid is not valid in International Collins CSW Dictionary

Words With Friends Score: 16

lanthanoid is a valid Words With Friends word