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 ?
In fact, he was a far more presentable man of science than his master, Dr Hirsch, who was a forked radish of a fellow, with just enough bulb of a head to make his body insignificant.
On the morning following Sally's arrival, it being a Thursday and his day off, he was crouching in a constrained attitude in his garden, every fibre of his being concentrated on the interment of a plump young bulb.
But the first reader prefers as naturally the symbol of a mother and child, or a gardener and his bulb, or a jeweller polishing a gem.
Day and night she watched him and tended him, giving him his only medicine, a native cooling drink made of milk, in which was infused juice from the bulb of a species of tulip, and keeping the flies from settling on him.
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.
The engineer, who occupied the adjoining room, dropped in to meet the new hand and helped Martin rig up an electric bulb, on an extension wire, so that it travelled along a stretched cord from over the table to the bed.
For instance, a bulb of Hippeastrum aulicum produced four flowers; three were fertilised by Herbert with their own pollen, and the fourth was subsequently fertilised by the pollen of a compound hybrid descended from three other and distinct species: the result was that 'the ovaries of the three first flowers soon ceased to grow, and after a few days perished entirely, whereas the pod impregnated by the pollen of the hybrid made vigorous growth and rapid progress to maturity, and bore good seed, which vegetated freely.
And then of a sudden I saw Raffles on my right striking with his torch; a face flew out of the darkness to meet the thick glass bulb with the glowing wire enclosed; it was the face of the boy Olphert, with his enviable moustache, but it vanished with the crash of glass, and the naked wire thickened to the eye like a tuning-fork struck red-hot.
He coughed pitifully, the broken cough of a sick man; and I beheld him as one sees a fish in an aquarium by the light of an electric bulb, an elusive, phos- phorescent shape.
The room, quite a large one, but with a low ceiling, was scantily furnished, and an electric bulb with a porcelain shade pulled low down over a big table (with a very large map spread on it) left its distant parts in a dim, artificial twilight.
He looked sober in spite of his humming, till he went to the window to turn the hyacinth bulbs toward the sun, and stroke the cat, who received him like an old friend.
As strange misgrown masses gather in the knot-holes of the noblest oaks when prostrate, so from the points which the whale's eyes had once occupied, now protruded blind bulbs, horribly pitiable to see.