| midvein | (noun) the vein in the center of a leaf | Synonyms: midrib |
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| reveille | (noun) a signal to get up in the morning; in the military it is a bugle call at sunrise | - |
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| (noun) (military) signal to wake up | Synonyms: wake-up signal |
| surveillance | (noun) close observation of a person or group (usually by the police) | - |
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| thortveitite | (noun) a mineral consisting of scandium yttrium silicate; a source of scandium | - |
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| unveiling | (noun) the act of beginning something new | Synonyms: debut, entry, first appearance, introduction, launching |
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| (noun) putting on display for the first time | - |
| uveitis | (noun) inflammation of the uvea of the eye | - |
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| veil | (noun) a garment that covers the head and face | Synonyms: head covering |
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| (noun) a vestment worn by a priest at High Mass in the Roman Catholic Church; a silk shawl | Synonyms: humeral veil |
| (noun) the inner membrane of embryos in higher vertebrates (especially when covering the head at birth) | Synonyms: caul, embryonic membrane |
| (noun) a membranous covering attached to the immature fruiting body of certain mushrooms | Synonyms: velum |
| veiling | (noun) a net of transparent fabric with a loose open weave | Synonyms: gauze, netting |
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| vein | (noun) one of the horny ribs that stiffen and support the wing of an insect | Synonyms: nervure |
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| (noun) a blood vessel that carries blood from the capillaries toward the heart | Synonyms: vena, venous blood vessel |
| (noun) a distinctive style or manner | - |
| (noun) a layer of ore between layers of rock | Synonyms: mineral vein |
| (noun) any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ | Synonyms: nervure |