onyx

noun

on·​yx ˈä-niks 

: a translucent chalcedony in parallel layers of different colors

Examples of onyx in a Sentence

Recent Examples on the Web

The building’s exterior is an unconventional assemblage of ten sculptural cones clad in stainless steel mesh, onyx, and glass, rising up to 280 feet into the sky. — News Desk, Artforum, 29 July 2026

Central to the collection is the brand’s Éclat de Joie star, a multifaceted motif rendered in diamonds and natural stones including malachite, mother-of-pearl and onyx. — Thomas Waller, Footwear News, 27 July 2026

The black gown featured a plunging neckline with black onyx stones. — Caroline Blair, PEOPLE, 12 July 2026

The differing inlay materials — such as mother of pearl, malachite and onyx — have been given different mystical meanings by social media users (helping with the wearer’s career, love life, friendships or finances, for example). — CNN Money, 8 July 2026

Word History

Etymology

Middle English oniche, onyx, from Anglo-French & Latin; Anglo-French, from Latin onych-, onyx, from Greek, literally, claw, nail — more at nail

First Known Use

14th century, in the meaning defined above

Rhymes for onyx

• conics
• phonics
• sonics
• tonics
• avionics
• electronics
• histrionics
• hydroponics
• nucleonics
• ultrasonics
• harmonics
• ionics

Kids Definition

onyx

noun

on·​yx ˈän-iks 

: chalcedony in parallel layers of different color