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

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

Full Definition of AGATE

:  a fine-grained variegated chalcedony having its colors arranged in stripes, blended in clouds, or showing mosslike forms
:  something made of or fitted with agate: as
a :  a drawplate used by gold-wire drawers
b :  a playing marble of agate
a :  a size of type approximately 512 point
b :  condensed information (as advertisements or box scores) set especially in agate type

Origin of AGATE

Middle French, from Latin achates, from Greek achatēs
First Known Use: 1570

Other Mineralogy Terms

host, inclusion, matrix, streak

Rhymes with AGATE

AGATE Defined for Kids


noun ag·ate \ˈa-gət\

Definition of AGATE for Kids

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