bulb

英 [bʌlb]

美 [bʌlb]

n. 电灯泡; (植物)鳞茎; 鳞茎状物(如温度计的球部)

复数：bulbs　

Collins.2 / BNC.5690 / COCA.4901

牛津词典

noun

电灯泡
the glass part that fits into an electric lamp, etc. to give light when it is switched on
1. a 60-watt bulb
  60瓦的灯泡
2. a room lit by bare bulbs (= with no decorative cover)
  只有光秃秃的电灯泡照明的屋子（无灯罩、灯饰）
（植物）鳞茎
the round underground part of some plants, shaped like an onion , that grows into a new plant every year
鳞茎状物（如温度计的球部）
an object shaped like a bulb , for example the end of a thermometer

N-COUNT 电灯泡
Abulbis the glass part of an electric lamp, which gives out light when electricity passes through it.
1. The stairwell was lit by a single bulb.
  楼梯间只有一盏灯照明。
N-COUNT 球茎；鳞茎
Abulbis a root shaped like an onion that grows into a flower or plant.
1. ...tulip bulbs.
  郁金香球茎

noun

a rounded part of a cylindrical instrument (usually at one end)
1. the bulb of a syringe
electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
Synonym:light bulblightbulbincandescent lampelectric lightelectric-light bulb
a rounded dilation or expansion in a canal or vessel or organ
lower or hindmost part of the brain
1. the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning
Synonym:medulla oblongatamedulla
a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
anything with a round shape resembling a teardrop

The naked bulb was directly over his head
裸露的灯泡正好在他的头顶上方。
A 40 watt bulb would be quite sufficient and would not obtrude
40瓦的灯泡完全够亮了，并且不会晃眼。
The floor lamp in my room is out. Please change the bulb.
我房间的落地台灯坏了，请换灯泡。
It is after having failed a lot that he had the invention of tungsten filament bulb.
在经历了很多的失败之后，他才发明了钨丝灯泡。
Edison invented the bulb.
爱迪生发明了灯炮。
It has a white bulb and a white lampshade.
它有一个白色的灯泡和一个白色的灯罩。
That electric bulb is very bright.
那个灯泡很亮。
Risk of damage to bulbs and bulb housing.
有损坏灯泡和灯泡壳的危险。
The stairwell was lit by a single bulb.
楼梯间只有一盏灯照明。
The bulb of Amaryllis vittata was used explant to establish the technique system of tissue culture.
本研究以鳞茎盘为外植体建立了朱顶红组织培养的技术体系。