Ceramicist is actually a term for two different but related fields of work. One definition is a person who deals with the most common find of an ancient archeological site: pottery. With these items, called potsherds, a ceramicist can define the timetable and the different communities of the site.
cystine /cysÂ·tine/ (sisÂ´tÄn) (sisÂ´tin) a sulfur-containing amino acid produced by digestion or acid hydrolysis of proteins, sometimes found in the urine and kidneys, and readily reduced to two molecules of cysteine. cystine (sÄ­sâ²tÄnâ²)
cysteine. a sulfur-containing amino acid, one of the nonessential amino acids, produced by enzymatic or acid hydrolysis of proteins; it is readily oxidized to cystine and is sometimes found in urine. (sis-tÄ'in), Do not confuse this word with cystine.ysteine (Cys). [sisâ²tÄn]. an amino acid found in many proteins in the body, including keratin. It is a metabolic precursor of cystine and an important source of sulfur for various body functions.