SARDONYX
\sˈɑːdənˌɪks], \sˈɑːdənˌɪks], \s_ˈɑː_d_ə_n_ˌɪ_k_s]\
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By William Dodge Lewis, Edgar Arthur Singer
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A reddish-yellow variety of chalcedony, said to have been found orig. at Sardis, in Asia Minor, and to be so called because its color resembles that of the flesh under the nail.
By Daniel Lyons
By William Hand Browne, Samuel Stehman Haldeman
By James Champlin Fernald
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.