sar·don·yx 
(sär-dŏnĭks, särdn-ĭks′)
(sär-dŏnĭks, särdn-ĭks′)n.
An onyx with alternating brown and white bands of sard and other minerals.
[Middle English sardonix, probably from Latin sardonyx, from Greek sardonux : sardion, sard; see SARD + onux, onyx, nail; see nogh- in the Appendix of Indo-European roots.]
- transcribe
- transcriber
- transcript
- transcriptase
- transcription
- transcriptional
- transcriptionally
- transcriptionist
- transculturation
- transcurrent
- transcutaneous
- transdermal
- transdermal patch
- transduce
- transducer
- transductant
- transduction
- transductional
- transect
- transection
- transept
- transeptal
- transeunt
- trans fat
- trans fatty acid