bulb


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bulb

 (bŭlb)
n.
1. Botany
a. A short, modified, underground stem surrounded by usually fleshy modified leaves that contain stored food for the shoot within: an onion bulb; a tulip bulb.
b. A similar underground stem or root, such as a corm, rhizome, or tuber.
c. A plant that grows from a bulb.
2. A rounded projection or part: the bulb of a syringe.
3. A light bulb.
4. Anatomy A rounded dilation or expansion of a canal, vessel, or organ.

[Latin bulbus, from Greek bolbos, bulbous plant.]

bulb

(bʌlb)
n
1. (Botany) a rounded organ of vegetative reproduction in plants such as the tulip and onion: a flattened stem bearing a central shoot surrounded by fleshy nutritive inner leaves and thin brown outer leaves. Compare corm
2. (Botany) a plant, such as a hyacinth or daffodil, that grows from a bulb
3. (Electrical Engineering) See light bulb
4. (General Engineering) a rounded part of an instrument such as a syringe or thermometer
5. (Anatomy) anatomy a rounded expansion of a cylindrical organ or part, such as the medulla oblongata
6. (Nautical Terms) Also called: bulbous bow a bulbous protuberance at the forefoot of a ship to reduce turbulence
[C16: from Latin bulbus, from Greek bolbos onion]

bulb

(bʌlb)

n.
1.
a. a swollen, usu. underground stem having fleshy scalelike leaves that contain stored food, as in the onion or daffodil.
b. a plant growing from such a stem.
2. any round, enlarged part, esp. at the end of a cylindrical object: the bulb of a thermometer.
3.
a. the glass housing, in which a partial vacuum has been established, that contains the filament of an incandescent lamp.
b. an incandescent lamp.
4. any of various small, bulb-shaped anatomical structures or protuberances: olfactory bulb.
6. a camera shutter setting in which the shutter remains open as long as the shutter release is depressed.
[1560–70; < Latin bulbus < Greek bolbós onion]

bulb

(bŭlb)
1. A round part of a stem that develops underground and contains the shoot of a new plant. A bulb is surrounded by leaf-like scales that provide nourishment to the new plant. Tulips, lilies, and onions grow from bulbs. Compare corm, rhizome, runner, tuber.
2. The part of an incandescent or fluorescent lamp that gives off light. The bulb of an incandescent lamp contains a filament inside a usually rounded piece of glass. The bulb of a fluorescent lamp is a glass tube or chamber containing a mixture of gases without a filament.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.bulb - a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
onion - the bulb of an onion plant
shallot - aggregate bulb of the multiplier onion
squill - bulb of the sea squill, which is sliced, dried, and used as an expectorant
stalk, stem - a slender or elongated structure that supports a plant or fungus or a plant part or plant organ
bulbil, bulblet - small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers
2.bulb - electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricitybulb - electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
electric lamp - a lamp powered by electricity
filament - a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
3.bulb - a rounded part of a cylindrical instrument (usually at one end); "the bulb of a syringe"
mercury thermometer, mercury-in-glass thermometer - 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
part, portion - something less than the whole of a human artifact; "the rear part of the house"; "glue the two parts together"
syringe - a medical instrument used to inject or withdraw fluids
4.bulb - anything with a round shape resembling a teardrop
round shape - a shape that is curved and without sharp angles
5.bulb - lower or hindmost part of the brainbulb - 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"
neural structure - a structure that is part of the nervous system
brain stem, brainstem, brain-stem - the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus
respiratory center - 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
6.bulb - a rounded dilation or expansion in a canal or vessel or organ
anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"

bulb

noun tuber, rhizome, corm a tulip bulb
Translations
بَصَلَة النَباتبَصَلَهبُصَيْلَةُ المِصْباحِ الكَهْرَبائيبُصَيْلَةُ ميزانِ الحَرارَهلـَمْبَة كَهْرَبائِيّ
cibulkažárovkahlízabaňkabulva
elektrisk pærekugleløgblomsterløg
hehkulamppukasvisipuli
lukovicažarulja
üveggömbvillanykörtevirághagyma
kúlalaukurljósapera
球根電球
구근전구
lemputėsvogūnėlissvogūninissvogūno pavidalotermometro galiukas
elektriskā spuldzesīpolsspuldzetermometra bumbiņa
čebulicažarnica
lökglödlampa
หลอดไฟฟ้าหัวของต้นไม้
ampulbaloncukçiçek soğanıelektrik ampulühazne
bóng đèncủ

bulb

[bʌlb] N
1. (Bot) → bulbo m, camote m (Mex); [of garlic] → cabeza f
2. (Elec) → bombilla f, bombillo m (LAm), foco m (LAm)
3. [of thermometer] → cubeta f, ampolleta f

bulb

[ˈbʌlb] n
[plant] → bulbe m, oignon m
(= light fitting) → ampoule f

bulb

n
Zwiebel f; (of garlic)Knolle f
(Elec) → (Glüh)birne f
(of thermometer etc)Kolben m

bulb

[bʌlb] n (Bot) (of thermometer) → bulbo (Elec) → lampadina

bulb

(balb) noun
1. the ball-shaped part of the stem of certain plants, eg onions, tulips etc, from which their roots grow.
2. (also ˈlight bulb) a pear-shaped glass globe surrounding the element of an electric light.
3. the pear-shaped end of a thermometer.
ˈbulbous adjective
like a bulb, especially in shape. a bulbous nose.

bulb

بَصَلَة النَبات, لـَمْبَة كَهْرَبائِيّ cibulka, žárovka blomsterløg, elektrisk pære Blumenzwiebel, Glühbirne βόλβος, λαμπτήρας bombilla, bulbo hehkulamppu, kasvisipuli ampoule, bulbe lukovica, žarulja bulbo, lampadina 球根, 電球 구근, 전구 bloembol, lichtpeertje (blomster)løk, lyspære cebulka, żarówka bolbo, bulbo, lâmpada луковица, электрическая лампочка glödlampa, lök หลอดไฟฟ้า, หัวของต้นไม้ ampul, soğan bóng đèn, củ 灯泡, 球茎

bulb

n. bulbo, pera; bombillo;
1. [syringe] pera de goma;
2. expansión oval o circular de un conducto o cilindro.
References in classic literature ?
There were bundles of labels, cupboards, and drawers with compartments, and wire guards for the cupboards, to allow free access to the air whilst keeping out slugs, mice, dormice, and rats, all of them very curious fanciers of tulips at two thousand francs a bulb.
Soon people from Dort to Mons began to talk of Mynheer van Baerle's tulips; and his beds, pits, drying-rooms, and drawers of bulbs were visited, as the galleries and libraries of Alexandria were by illustrious Roman travellers.
What was the agony of the unfortunate Boxtel on seeing the windows of the new story set out with bulbs and seedlings of tulips for the border, and tulips in pots; in short, with everything pertaining to the pursuits of a tulip-monomaniac!
And thus Van Baerle was to have the most admirably fitted aspect, and, besides, a large, airy, and well ventilated chamber where to preserve his bulbs and seedlings; while he, Boxtel, had been obliged to give up for this purpose his bedroom, and, lest his sleeping in the same apartment might injure his bulbs and seedlings, had taken up his abode in a miserable garret.
Here passing a florist's shop he saw some bulbs which he knew his uncle wanted.
Here I found some young onions, a couple of gladiolus bulbs, and a quantity of immature carrots, all of which I secured, and, scrambling over a ruined wall, went on my way through scarlet and crimson trees towards Kew-- it was like walking through an avenue of gigantic blood drops--possessed with two ideas: to get more food, and to limp, as soon and as far as my strength permitted, out of this accursed unearthly region of the pit.
Amaryllis is a bulb that can bloom for many seasons.
THE warm glow of traditional light bulbs could return to homes after scientists discovered a way to make them more energy efficient.
Less glass is required in their manufacturing, and T5 bulbs are 9 percent more efficient than T8 bulbs and 51 percent more efficient than the old T12s.
It was indeed a bright idea to ban the standard incandescent light bulb back in 2007.
Soon incandescent bulbs won't be an option, but it's unclear how that will affect consumers.
The new Philips LED bulb looks like a conventional bulb until you turn it through 90 degrees, when its flat but the tech sites are all big fans.