ISOTROPISM
\ˈa͡ɪsətɹˌə͡ʊpɪzəm], \ˈaɪsətɹˌəʊpɪzəm], \ˈaɪ_s_ə_t_ɹ_ˌəʊ_p_ɪ_z_ə_m]\
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[=i]-sot'rop-izm, n. physical homogeneity or amorphism: identity of elastic forces of propagation of vibration (light, heat, sound), or identity of susceptibility to magnetisation, in all directions.--adjs. ISOTROP'IC, ISOT'ROPOUS.
By Thomas Davidson
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.-.