bulb
noun
Key Types & categories Parts & wholes Related & opposite
- Word type
- noun
- verb
- adjective
- adverb
- Line style
- core relation
- instance, member or derived
- substance, domain or see-also
- Direction
- arrow points to the broader concept
- dashed outline: no word in this language
- Click any word to expand it.
Senses
Sense 1 noun
a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
Types & categories
Related & opposite
- bulbaceous derivation
Sense 2 noun
electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
Types & categories
- electric lamp hypernym
Parts & wholes
- filament part meronym
Sense 3 noun
a rounded part of a cylindrical instrument (usually at one end)
the bulb of a syringe
Types & categories
- part hypernym
Parts & wholes
- mercury thermometer part holonym
- syringe part holonym
Related & opposite
- bulbous derivation
Sense 4 noun
anything with a round shape resembling a teardrop
Types & categories
- round shape hypernym
Related & opposite
- bulbous derivation
Sense 5 noun
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
Types & categories
- neural structure hypernym
Parts & wholes
- brainstem part holonym
- respiratory center part meronym
Related & opposite
Sense 6 noun
a rounded dilation or expansion in a canal or vessel or organ
Types & categories
- anatomical structure hypernym
Related & opposite
- bellying derivation
Table view of this graph
| Sense | Relation | Group | Word |
|---|---|---|---|
| 1 | derivation | Related & opposite | bulbaceous |
| 1 | hypernym | Types & categories | stalk |
| 1 | hyponym | Types & categories | onion |
| 1 | hyponym | Types & categories | shallot |
| 1 | hyponym | Types & categories | squill |
| 1 | hyponym | Types & categories | bulbil |
| 2 | part meronym | Parts & wholes | filament |
| 2 | hypernym | Types & categories | electric lamp |
| 3 | derivation | Related & opposite | bulbous |
| 3 | part holonym | Parts & wholes | mercury thermometer |
| 3 | part holonym | Parts & wholes | syringe |
| 3 | hypernym | Types & categories | part |
| 4 | derivation | Related & opposite | bulbous |
| 4 | hypernym | Types & categories | round shape |
| 5 | derivation | Related & opposite | medullary |
| 5 | derivation | Related & opposite | bulbar |
| 5 | part holonym | Parts & wholes | brainstem |
| 5 | part meronym | Parts & wholes | respiratory center |
| 5 | hypernym | Types & categories | neural structure |
| 6 | derivation | Related & opposite | bellying |
| 6 | hypernym | Types & categories | anatomical structure |