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Electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
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A rounded part of a cylindrical instrument (usually at one end)
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A rounded dilation or expansion in a canal or vessel or organ
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Lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
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A modified bud consisting of a thickened globular underground stem serving as a reproductive structure
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Anything with a round shape resembling a teardrop