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See sard.

[Middle English, from Old English, from Late Latin, from Greek (lithos) sardios, from Greek sardius (stone), variant of sardion, sardius, perhaps from Sardeis, Sardis.]


1. (Bible) Old Testament a precious stone, probably a ruby, set in the breastplate of the high priest
2. (Minerals) another name for sard
[C14: via Late Latin from Greek sardios, from Sardeis Sardis]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sardius - a deep orange-red variety of chalcedony
calcedony, chalcedony - a milky or greyish translucent to transparent quartz
References in classic literature ?
The gates of the palace of John the Priest were "made of sardius, with the horn of the horned snake inwrought, so that no man might bring poison within.
Made in Ramat-Gan, Israel, it was marketed as the Sirkis SD9 and also as the Sardius SD9.
First, he recommends Sardius Saturninus, the father of two of his students, to Caelius Optatus, legatus of Numidia in 166 (Ad Am.