bulb
bulb
noun
A rounded underground part of some plants, storing food for new growth.
"Plant the daffodil bulbs in autumn for spring flowers."
noun
A round glass component with a filament that produces light when electricity passes through it.
"The light bulb in the lamp needs replacing."
Thesaurus
Synonyms: medulla, medulla oblongata, electric-light bulb, incandescent lamp, light bulb, electric light, lightbulb