Definition of agate
1
:a fine-grained variegated chalcedony having its colors arranged in stripes, blended in clouds, or showing mosslike forms
2
:something made of or fitted with agate: such as
a
:a drawplate used by gold-wire drawers
b
:a playing marble of agate
3 a
:a size of type approximately 5¹/₂ point
b
:condensed information (such as advertisements or box scores) set especially in agate type
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