bulb
English Thesaurus
1. a rounded part of a cylindrical instrument (usually at one end) (noun.artifact)
| hypernym | : | part, portion, |
| definition | : | something less than the whole of a human artifact (noun.artifact) |
| part meronym | : | mercury thermometer, mercury-in-glass thermometer, |
| definition | : | thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube (noun.artifact) |
| part meronym | : | syringe, |
| definition | : | a medical instrument used to inject or withdraw fluids (noun.artifact) |
2. electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity (noun.artifact)
| hypernym | : | electric lamp, |
| definition | : | a lamp powered by electricity (noun.artifact) |
| part holonym | : | filament, |
| definition | : | a thin wire (usually tungsten) that is heated white hot by the passage of an electric current (noun.artifact) |
3. a rounded dilation or expansion in a canal or vessel or organ (noun.body)
4. lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata) (noun.body)
| hypernym | : | neural structure, |
| definition | : | a structure that is part of the nervous system (noun.body) |
| part holonym | : | respiratory center, |
| definition | : | the center in the medulla oblongata and pons that integrates sensory information about the level of oxygen and carbon dioxide in the blood and determines the signals to be sent to the respiratory muscles (noun.body) |
| part meronym | : | brain stem, brain-stem, brainstem, |
| definition | : | the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus (noun.body) |
5. a modified bud consisting of a thickened globular underground stem serving as a reproductive structure (noun.plant)
| hypernym | : | stalk, stem, |
| definition | : | a slender or elongated structure that supports a plant or fungus or a plant part or plant organ (noun.plant) |
| hyponym | : | onion, |
| definition | : | the bulb of an onion plant (noun.plant) |
| hyponym | : | shallot, |
| definition | : | aggregate bulb of the multiplier onion (noun.plant) |
| hyponym | : | squill, |
| definition | : | bulb of the sea squill, which is sliced, dried, and used as an expectorant (noun.plant) |
| hyponym | : | bulbil, bulblet, |
| definition | : | small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers (noun.plant) |
6. anything with a round shape resembling a teardrop (noun.shape)
| hypernym | : | round shape, |
| definition | : | a shape that is curved and without sharp angles (noun.shape) |
7. a rounded part of a cylindrical instrument (usually at one end) (noun.artifact)
8. a rounded dilation or expansion in a canal or vessel or organ (noun.body)
9. lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata) (noun.body)
| derivation | : | medullary, |
| definition | : | of or relating to the medulla oblongata (adj.pert) |
| derivation | : | bulbar, |
| definition | : | involving the medulla oblongata (adj.pert) |
10. a modified bud consisting of a thickened globular underground stem serving as a reproductive structure (noun.plant)
| derivation | : | bulbaceous, |
| definition | : | producing or growing from bulbs (adj.pert) |
11. anything with a round shape resembling a teardrop (noun.shape)
12. a rounded part of a cylindrical instrument (usually at one end) (noun.artifact)
13. a rounded dilation or expansion in a canal or vessel or organ (noun.body)
14. lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata) (noun.body)
| derivation | : | medullary, |
| definition | : | of or relating to the medulla oblongata (adj.pert) |
| derivation | : | bulbar, |
| definition | : | involving the medulla oblongata (adj.pert) |
15. a modified bud consisting of a thickened globular underground stem serving as a reproductive structure (noun.plant)
| derivation | : | bulbaceous, |
| definition | : | producing or growing from bulbs (adj.pert) |
16. anything with a round shape resembling a teardrop (noun.shape)
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