PORTCULLIS
\pˈɔːtkəlˌiz], \pˈɔːtkəlˌiz], \p_ˈɔː_t_k_ə_l_ˌi_z]\
Sort: Oldest first
By Oddity Software
-
A strong grating hung over the gateway of a fortified place and capable of being let down to defend the gate.
By William Dodge Lewis, Edgar Arthur Singer
-
A sliding door of cross timbers pointed with iron, hung over a gateway, so as to be let down in a moment to keep out an enemy.
By Daniel Lyons
By William Hand Browne, Samuel Stehman Haldeman
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.-.