FRESNEL LENS
\fɹˈɛsnə͡l lˈɛnz], \fɹˈɛsnəl lˈɛnz], \f_ɹ_ˈɛ_s_n_əl l_ˈɛ_n_z]\
Sort: Oldest first
-
lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
By Princeton University
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.-.