POSTMARK
\pˈə͡ʊstmɑːk], \pˈəʊstmɑːk], \p_ˈəʊ_s_t_m_ɑː_k]\
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By Princeton University
By DataStellar Co., Ltd
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The mark, or stamp, of a post office on a letter, giving the place and date of mailing or of arrival.
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To mark with a post-office stamp; as, to postmark a letter or parcel.
By Oddity Software
By William Dodge Lewis, Edgar Arthur Singer
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.-.