Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

agate

play
noun, often attributive ag·ate \ˈa-gət\

Simple Definition of agate

  • : a very hard stone used especially in jewelry that has colors arranged in stripes or in patches

Source: Merriam-Webster's Learner's Dictionary

Full Definition of agate

  1. 1 :  a fine-grained variegated chalcedony having its colors arranged in stripes, blended in clouds, or showing mosslike forms

  2. 2 :  something made of or fitted with agate: as a :  a drawplate used by gold-wire drawers b :  a playing marble of agate

  3. 3 a :  a size of type approximately 512 point b :  condensed information (as advertisements or box scores) set especially in agate type

Origin and Etymology of agate

Middle French, from Latin achates, from Greek achatēs


First Known Use: 1570

Other Mineralogy Terms

Rhymes with agate


AGATE Defined for Kids

agate

play
noun ag·ate \ˈa-gət\

Definition of agate for Students

  1. :  a mineral that is a form of quartz with colors arranged in stripes or patches and that is used especially in jewelry




Learn More about agate


Seen and Heard

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

WORD OF THE DAY

to lessen in amount, effect, or force

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

fox-in-summer-forest

Which of these is a synonym of inchoate?

frightening experimental massive formless
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ