sardius

sar·di·us  (särd-s)

n.

See sard.

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[Middle English, from Old English, from Latin, from sarda; see sard.]

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sardius [ˈsɑːdɪəs]

n

1. (Christian Religious Writings / Bible) Old Testament a precious stone, probably a ruby, set in the breastplate of the high priest

2. (Earth Sciences / Minerals) another name for sard

[via Late Latin from Greek sardios, from Sardeis Sardis]

Thesaurus

Noun

1.

sardius - a deep orange-red variety of chalcedony sard, sardine calcedony, chalcedony - a milky or greyish translucent to transparent quartz