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Bulb

/bʌlb/

Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.

Full Dictionary Entry

📖 Definitions of "Bulb"

noun

1
Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.
"the bulb of the aorta"
2
A light bulb.
3
The bulb-shaped root portion of a plant such as a tulip, from which the rest of the plant may be regrown.
4
A bulbous protuberance at the forefoot of certain vessels to reduce turbulence.

verb

1
To take the shape of a bulb; to swell.

🔄 Synonyms of "Bulb"

7 synonyms found via WordNet and Google Books.

Word	Definition
medullanoun	(anatomy) The inner substance of various organs and structures, especially the marrow of bones.
medulla oblongatanoun	(neuroanatomy, anatomy) The lower portion of the brainstem.
light bulbnoun	An evacuated glass bulb containing a metal filament which is heated by electrical resistance to produce light.
electric lightnoun	Artificial light using electricity as a source of illumination.
incandescent lampnoun	A light bulb whose metallic filament is heated by an electric current.
lightbulbnoun	(Singapore, colloquial) An uninvited third person joining a couple's date who prevents or hinders romantic interactions.
electric-light bulbnoun	electric lamp consisting of a glass bulb containing a wire filament (usually tungsten) that emits light when heated

💡 Words with a Similar Meaning to "Bulb"

Found via reverse dictionary — words that share a conceptual meaning.

Word	Definition
light bulbnoun	An evacuated glass bulb containing a metal filament which is heated by electrical resistance to produce light.
incandescent lampnoun	A light bulb whose metallic filament is heated by an electric current.
electric lightnoun	Artificial light using electricity as a source of illumination.
lightbulbnoun	(Singapore, colloquial) An uninvited third person joining a couple's date who prevents or hinders romantic interactions.
medullanoun	(anatomy) The inner substance of various organs and structures, especially the marrow of bones.
medulla oblongatanoun	(neuroanatomy, anatomy) The lower portion of the brainstem.
electric-light bulbnoun	electric lamp consisting of a glass bulb containing a wire filament (usually tungsten) that emits light when heated
lampnoun	A device that generates heat, light or other radiation. Especially an electric light bulb.
socketnoun	(electricity) An opening into which a plug or other connecting part is designed to fit (e.g. a light bulb socket).
thermometernoun	An apparatus used to measure temperature.
lightnoun	(physics, uncountable) Electromagnetic radiation in the wavelength range visible to the human eye (about 400–750 nanometers): visible light.
flasknoun	A container used to discreetly carry a small amount of a hard alcoholic beverage; a pocket flask.
freshetnoun	A flood resulting from heavy rain or a spring thaw.
floodnoun	An overflow of a large amount of water (usually disastrous) from a lake or other body of water due to excessive rainfall or other input of water.
droughtnoun	A period of unusually low rainfall, longer and more severe than a dry spell.
poolnoun	A small and rather deep area of (usually) fresh water, as one supplied by a spring, or occurring in the course of a stream or river; a reservoir for water.
tanknoun	A closed container for liquids or gases.
ampnoun	(colloquial, countable) Clipping of ampere. [A unit of electrical current, the standard base unit in the International System of Units; colloquially amp. Abbreviation: amp, Symbol: A]
containernoun	An item in which objects, materials or data can be stored or transported.
ampoulenoun	A small hermetically sealed vial, often used to contain a sterile solution suitable for injection.