UMBRA
\ˈʌmbɹə], \ˈʌmbɹə], \ˈʌ_m_b_ɹ_ə]\
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The central dark portion, or nucleus, of a sun spot.
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The fainter part of a sun spot; - now more commonly called penumbra.
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Any one of several species of sciaenoid food fishes of the genus Umbrina, especially the Mediterranean species (U. cirrhosa), which is highly esteemed as a market fish; - called also ombre, and umbrine.
By Oddity Software
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The central dark portion, or nucleus, of a sun spot.
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The fainter part of a sun spot; - now more commonly called penumbra.
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Any one of several species of sciaenoid food fishes of the genus Umbrina, especially the Mediterranean species (U. cirrhosa), which is highly esteemed as a market fish; - called also ombre, and umbrine.
By Noah Webster.
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A family of ESOCIFORMES comprising the mudminnows. There are three genera: Dallia, Novumbra, and Umbra, with much disagreement about their taxonomic interrelations. The Umbridae are freshwater fish inhabiting parts of the Northern Hemisphere.
By DataStellar Co., Ltd
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.-.