SOLID STATE
\sˈɒlɪd stˈe͡ɪt], \sˈɒlɪd stˈeɪt], \s_ˈɒ_l_ɪ_d s_t_ˈeɪ_t]\
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(Often hyphenated when used as an adjective) Aterm describing any device that uses semiconductorcomponents rather than electron tubes or relays.Semiconductors are "solid" in that they contain no gas ("vacuum" tubes contain a small amount as the vacuum is notperfect) or moving parts (like relays), but probably moreimportant is the connotation of reliability and durabilitythat made possible things like portable radios.
By Denis Howe
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.-.