bulb /bʌlb/
1. a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
synset: bulb
2. electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
synset: light_bulb, lightbulb, bulb, incandescent_lamp, electric_light, electric-light_bulb
3. a rounded part of a cylindrical instrument (usually at one end); "the bulb of a syringe"
synset: bulb
4. anything with a round shape resembling a teardrop
synset: bulb
5. lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
synset: medulla_oblongata, medulla, bulb
6. a rounded dilation or expansion in a canal or vessel or organ
synset: bulb
Princeton University "About WordNet." WordNet. Princeton University. 2010.
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