lanthanum

play
noun lan·tha·num \ˈlan(t)-thə-nəm\

Definition of lanthanum

  1. :  a white soft malleable metallic element that occurs in rare-earth minerals — see element table

Recent Examples of lanthanum from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lanthanum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of lanthanum

New Latin, from Greek lanthanein to escape notice — more at latent


Medical Dictionary

lanthanum

play
noun lan·tha·num \-nəm\

Medical Definition of lanthanum

  1. :  a white soft malleable metallic element that occurs in rare-earth minerals—symbol La; see element table


Learn More about lanthanum


Seen and Heard

What made you want to look up lanthanum? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

an extremely thin woman

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!