onyx

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Related to sardonyx: Chrysoprasus, birthstones

onyx

 [on´iks]
1. nail (def. 2).
2. a variety of hypopyon.

nail

(nāl),
1. One of the thin, horny, translucent plates covering the dorsal surface of the distal end of each terminal phalanx of fingers and toes. A nail consists of corpus or body, the visible part, and radix or root at the proximal end concealed under a fold of skin. The underpart of the nail is formed from the stratum germinativum of the epidermis, the free surface from the stratum lucidum, and the thin cuticular fold overlapping the lunula representing the stratum corneum. Synonym(s): unguis [TA], nail plate, onyx
2. A rod of metal or other solid substance, used in operations to fasten together the fragments of a broken bone.
[A.S. naegel]

onyx

/on·yx/ (on´iks)
1. nail (1).
2. a type of hypopyon.

nail

(nāl)
1. One of the thin, horny, translucent plates covering the dorsal surface of the distal end of each terminal phalanx of fingers and toes. A nail consists of a visible corpus or body, and a radix or root at the proximal end concealed under a fold of skin. The under part of the nail is formed from the stratum germinativum of the epidermis, and the free surface from the stratum lucidum, with the thin cuticular fold that overlaps the lunula representing the stratum corneum.
2. A slender rod of metal, bone, or other solid substance, used in operations to fasten together the divided extremities of a broken bone.
Synonym(s): unguis [TA] , nail plate, onyx.

onyx

1. a variety of hypopyon.
2. a claw or nail.
References in periodicals archive ?
This was because it was believed, by the righteous, that the walls of the heavenly Jerusalem were of jasper, with Jerusalem itself glistening like pure gold, with foundations made of emeralds, sapphires, sardonyx, amethysts and so on, through all its many layers.
My head also contains an ample supply of sardonyx, which is useful both for imparting a sardonic tone to columns when necessary, as well as for the fashioning of gems, particularly cameos - such as the cameo appearance that Mr.
The first such stanza reveals "the maid-mother by a crucifix" amid warm pasture beneath branches carved of sardonyx, "smiling babe in arm" (93-96).
66) Ciriaco gave a replica of a sardonyx cameo of the nude Scylla to Theodore Gaza, who was in Ferrara at the behest of Leonello d'Este to teach Greek with Guarino Guarini.
And here too the twelve gates are matched in number by the twlelve jewels that make up the fabric of the walls: chrysolite, sapphire, beryl, chalcedony, jacinth, amethyst, sardonyx, jasper, sardius, topaz, emerald, chrysoprase, all the jewels of the apocalyptic vision are carefully listed (851--65).
Pieces from antiquity accented with sapphires, carnelian, agate, sardonyx, emeralds and natural pearls are also found, serving as testament to ancient tastes for wealth and luxury.
But, whereas you might expect cameos (carved in Italy from shells) to be the central point of the jewel, many prove to be cut instead from sardonyx, which is sturdier, particularly when used in the making of rings - items of jewellery which always suffer from hard wear or misuse or both.