• WordNet 3.6
    • n bulb a rounded part of a cylindrical instrument (usually at one end) "the bulb of a syringe"
    • n bulb electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
    • n bulb a rounded dilation or expansion in a canal or vessel or organ
    • n bulb 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"
    • n bulb a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
    • n bulb anything with a round shape resembling a teardrop
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: The most popular grown bulbs are tulips
    • Bulb a light bulb.
    • Bulb (Anat) A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta.
    • Bulb (Bot) A spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid.
    • Bulb An expansion or protuberance on a stem or tube, as the bulb of a thermometer, which may be of any form, as spherical, cylindrical, curved, etc.
    • v. i Bulb To take the shape of a bulb; to swell.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The waste produced by one chicken in its lifetime can supply enough electricity to run a 100-watt bulb for five hours
    • n bulb A form of the leaf-bud, usually subterranean, in which the stem is reduced to a flat disk, rooting from the under side, and bearing above closely appressed fleshy leaves. In the tunicated or coated bulb these leaves are in the form of broad, closely concentric coatings, as in the hyacinth and onion; in the scaly bulb they are narrow, thick, and imbricated, as in the lily. The so-called solid bulb, as in the crocus and gladiolus, is more properly a corm, or short thick root-stock, inclosed within the dried sheathing bases of a few leaves.
    • n bulb Any protuberance or expansion resembling a bulb, especially an expansion at the end of a stalk or long and slender body: as, the bulb of a thermometer; the bulb of the aorta.
    • n bulb plural The tonsils.
    • bulb To project or be protuberant.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Bananas are perennial crops that are grown and harvested year-round. The banana plant does not grow from a seed but rather from a rhizome or bulb. Each fleshy bulb will sprout new shoots year after year.
    • n Bulb bulb an onion-like root: any protuberance or enlargement resembling such
    • v.i Bulb to form bulbs: to bulge out or swell
    • ***


  • Tennessee Williams
    “I can't stand a naked light bulb, any more than I can a rude remark or a vulgar action.”
  • Source Unknown
    Source Unknown
    “Most people give off as much heat as a 100 watt bulb, but not as much light.”


Webster's Revised Unabridged Dictionary
L. bulbus, Gr. bolbo`s: cf. F. bulbe,


In literature:

By storing, certain chemical changes take place in the bulb, which render it more nutritious and palatable.
"The Stock-Feeder's Manual" by Charles Alexander Cameron
I hope, if you have been bulb planting, that you got them all in by Lord Mayor's Day.
"Last Words" by Juliana Horatia Ewing
In one hand she held a trowel and in the other a parcel of spring bulbs.
"The Dark Tower" by Phyllis Bottome
Godfrey pulled a bulb of wild onion, cut off a slice and tasted it.
"Condemned as a Nihilist" by George Alfred Henty
Of course I don't generally keep daffodils and potatoes together; but James swore that the hard round things were tulip bulbs.
"Happy Days" by Alan Alexander Milne
A case was thrown up on the land containing a number of flower-bulbs.
"The Sand-Hills of Jutland" by Hans Christian Andersen
It is a glass bulb, with a stem above and a scale on it, and a weight below.
"The Humbugs of the World" by P. T. Barnum
The bulbs are set in narrow fields, to secure their shelter from the winds by thick hedges.
"The Cornwall Coast" by Arthur L. Salmon
I have here two glass tubes, terminated at one end by large bulbs.
"Conversations on Chemistry, V. 1-2" by Jane Marcet
After the children have planted the bulbs they sing and talk about their work.
"The New Education" by Scott Nearing
Among other things, a chest of rare flower bulbs floated ashore.
"What the Moon Saw: and Other Tales" by Hans Christian Andersen
Radium bulbs supplied its light.
"The Cavern of the Shining Ones" by Hal K. Wells
One day another ship was wrecked on the coast, and among other things a chest filled with valuable flower bulbs was washed ashore.
"Fairy Tales of Hans Christian Andersen" by Hans Christian Andersen
Rather like an ordinary electric light bulb, it looked, save that there were no filaments in the thin glass shell.
"The Raid on the Termites" by Paul Ernst
The cheapest audion bulb you can buy costs about three dollars.
"The Radio Boys at the Sending Station" by Allen Chapman
He procured the finest bulbs and flower seeds from Holland, and kept each kind in a separate bed.
"Personal Recollections, from Early Life to Old Age, of Mary Somerville" by Mary Somerville
This, as most boys know, is shaped like a pistol and has a bulb at one end.
"The Hilltop Boys" by Cyril Burleigh
Electric bulbs wear out and are changed, but the current does not change.
"Child and Country" by Will Levington Comfort
Every azalea was imported from Belgium; every lily-bulb from Japan.
"The Side Of The Angels" by Basil King
The sirup gauge is a graduated glass tube, with a weighted bulb, that registers from 0 deg.
"Canned Fruit, Preserves, and Jellies: Household Methods of Preparation" by Maria Parloa

In poetry:

She said: Would I might sleep
With the bulbs I plant so deep,
Forgetting all the long Winter
That I must awake and weep.
"What She Said" by Katharine Tynan
Ah, there's more sky in these parts than, say,
ground. Hence her voice's pitch,
and her stare stains your retina like a gray
bulb when you switch
"Belfast Tune" by Joseph Brodsky
Whose window shows a strip of building land,
Tussocky, littered. 'Mr Bleaney took
My bit of garden properly in hand.'
Bed, upright chair, sixty-watt bulb, no hook
"Mr Bleaney" by Philip Larkin
Yet she was ever in my thought
Like some exotic flower,
And so a garlic bulb I bought
And chewed it by the hour;
Then when we met I thrilled to see
'Twas she who shrank from me.
"The Battle" by Robert W Service
Oh servant Henry lectured till
the crows commenced and then
he bulbed his voice & lectured on some more.
This happened again & again, like war,—
the Indian p.a.'s, such as they were,
a weapon on his side, for the birds.
"Dream Song 24: Oh servant Henry lectured till" by John Berryman
Yes, all of this is sorrow. But leave
a little love burining always
like the small bulb in the room of a sleeping baby
that gives him a bit of security and quiet love
though he doesn't know what the light is
or where it comes from.
"Seven Laments For The War-Dead" by Yehuda Amichai

In news:

Imperial Irrigation District customers can bring up to five used incandescent bulbs and receive five free compact fluorescent light bulb s at the exchanges.
Apple has teamed with Philips on the, quote,"world's smartest light bulb ," called Hue.
Now, granted, it's not a normal light bulb .
The light bulb is easily one of the most important inventions of modern history, so functional that it has barely changed in the last 100 years or so.
Is coming out with what it says is a better LED light bulb -- and its first-ever consumer bulb -- at the end of August.
The high-tech bulb looks like a traditional incandescent but boasts a 25-year lifespan (at three hours of use per day) and a $25 price tag 3M believes consumers will still bite at that price.
One reason is the LED light bulb , the "light-emitting diode" that General Electric researchers invented 50 years ago, which is now the focus of intense competition among all of the major lighting manufacturers.
A fight may be brewing over light bulb s.
The incandescent is likely to be replaced between 2012 and 2014 by new energy standards for light bulb s, under a bill signed by President George W Bush in 2007.
New LED bulb from GE is rated for 25,000 hours, which means it will last for 17 years if used 4 hours per day.
FirstEnergy to defend light bulb program later this month.
The ESL bulbs generate light by firing electrons to stimulate phosphor, and the whole setup is encased in normal light-bulb glass.
The Home Depot chain has solved one of the biggest hassles associated with energy-saving compact fluorescent lights: how to safely dispose of bulbs that contain small amounts of potentially hazardous mercury.
Quality of lighting aside, developers must solve an even more fundamental problem before LEDs can replace the ubiquitous white light bulb : the white LEDs now being produced or developed all cost many times as much as an ordinary light bulb .
But don't worry there's a handy app, aptly called Light Bulb Finder, to help you pick the right light bulb .

In science:

The invention of the incandescent light bulb changes it all.
Simple circuit theory and the solution of two electricity problems from the Victorian Age
Edison’s light bulb had a great economical potential and the stock market reacted swiftly.
Simple circuit theory and the solution of two electricity problems from the Victorian Age
These resistors will model the light bulbs that provide the domestic lightning.
Simple circuit theory and the solution of two electricity problems from the Victorian Age
The resistance of a light bulb will be denoted by R and the voltage of the source by E .
Simple circuit theory and the solution of two electricity problems from the Victorian Age
The array of light bulbs, in series or in parallel, is represented by an equivalent Req , see Fig.1.
Simple circuit theory and the solution of two electricity problems from the Victorian Age
In the other case, i.e., the case in which the light bulbs are interconnected in series, Preece’s analysis is correct.
Simple circuit theory and the solution of two electricity problems from the Victorian Age
Another very prominent example shown in the 2010 documentary movie “The Light Bulb Conspiracy” by Cosima Dannortizer are consumer inkjet printers produced by companies like HP, Canon and Lexmark.
Modern consumerism and the waste problem
It was a joint-venture of the light bulb manufacturers Osram, Philips, Tungsram and General Electric, among others.
Modern consumerism and the waste problem
But they also secretly signed a commitment, pledging each other that light bulbs would be designed and constructed such that their expected life time would not exceed 1000 hours.
Modern consumerism and the waste problem
The Light Bulb Conspiracy. url: http : / / www . imdb . com / title/tt1825163/. Press Release Canon Inc.
Modern consumerism and the waste problem
Let A and B be two light switches for the bulbs 1 and 2 such that if the bulb 1 is off then pressing A once puts it on and pressing once more puts it off.
Excursions in Group Theory
Similar is the function of the switch B for the bulb 2.
Excursions in Group Theory
Then let the initial state be when both bulbs are off .
Excursions in Group Theory
G = {e, τ , σ, τ σ} is a group with respect to the operation of doing one action after the other on the initial state when both bulbs are off.
Excursions in Group Theory
The white light used to enhance trap loading was provided by a fiber optic illuminator, consisting of a halogen bulb with variable power and a fiber bundle which pointed the light into the vapor cell.
Loading a vapor cell magneto-optic trap using light-induced atom desorption