agate

noun

ag·​ate ˈa-gət 

often attributive

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

Examples of agate in a Sentence

Recent Examples on the Web

The gallery is home to the royal collection of hardstone vessels, which include a variety of treasures carved from minerals like agate, amethyst and jade. —Melina Khan, USA Today, 20 Oct. 2025

Onyx is a variety of chalcedony, a microcrystalline form of quartz that also includes stones like agate. —Valerie Mesa, PEOPLE, 6 Oct. 2025

That developed into work as a sports agate clerk – editing and coding the different box scores for print on our ‘Scoreboard’ page at the time. —Nicole Young, Nashville Tennessean, 5 Oct. 2025

The red agate worn by his mother reflects silent compassion, and the pearl accents on the Wulu pendant evoke the gentle passage of time. —Tianwei Zhang, Footwear News, 29 Sep. 2025

Word History

Etymology

Middle English achates, accate, agaten, borrowed from Anglo-French & Latin; Anglo-French achate, agathe, borrowed from Latin achātēs, borrowed from Greek achā́tēs, of uncertain origin

Note: According to Theophrastus and Pliny, the stone was named after a river in Sicily. Modern etymologists seem disinclined to believe this and suggest that the river was named after the stone. The voiced stop in the medieval French forms, which has become the dominant form in Modern French and English, begins to appear in Medieval Latin, and may be owed to Medieval Latin agapis, a word of obscure origin used for both the agate and lapis lazuli; it has been suggested that agapis is itself a distortion of achates (crossed with Latin lapis "stone"?), though this is far from clear.

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing agate

• agate line
• agate ware
• moss agate

Rhymes for agate

• fagot
• maggot

Kids Definition

agate

noun

ag·​ate ˈag-ət 

1

: a smooth-looking quartz having its colors arranged in stripes or forms that look like clouds or moss

2

: a playing marble of agate or glass