Definitions
a chalcedony with alternating black and white bands; used in making cameos
Word origin
From Middle English onix (c. 1300), earlier oniche (c. 1250), from Old French oniche or onix, from Latin onyx, from Ancient Greek ὄνυξ (ónux, “onyx”). Doublet of unguis.
Used in a sentence
“People talk about using marble in the bathrooms. Marble wasn't good enough for use—we have onyx!”
“Near-synonyms: ebony, raven”
“Near-synonyms: ebony, raven”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Black gemstone”4 letters
Not quite right?
"Search similar patterns."
O___