bulb
US: /ˈbəɫb/
UK: /bˈʌlb/
English - Vietnamese dictionary
bulb /bʌlb/- danh từ
- củ (hành, tỏi...); (thực vật học) (thân) hành
- (giải phẫu) hành
- bóng đèn
- bầu
- bulb of thermometer: bầu nhiệt biểu
- quả bóp (bơm nước hoa...)
Advanced English dictionary
+ noun1 (also light bulb) the glass part that fits into an electric lamp, etc. to give light when it is switched on: a 60-watt bulb + a room lit by bare bulbs (= with no decorative cover)
2 the round underground part of some plants, shaped like an onion, that grows into a new plant every year: daffodil bulbs + the bulb fields of Holland
3 an object shaped like a bulb, for example the end of a THERMOMETER
Collocation
1 (also light bulb) part of an electric lamp
ADJ.
electric | bare, naked, unshaded | 100-watt, 60-watt, etc. | bright, dim | bayonet-cap, ES | energy-efficient, energy-saving, long-life, low-energy | fluorescent | halogen | clear, coloured, pearl | flash
My camera needs a new flash bulb.
VERB + BULB
change, replace
Switch the light off before you change the bulb.
| put in | remove, take out
Can you take out the clear bulb and put a pearl one in?
| switch on | take
The fitting in the kitchen takes a fluorescent bulb.
BULB + VERB
light sth
The room was lit only by a single 40-watt light bulb.
| fail, go
I think the bulb over the sink is going to go. It's been flickering all evening.
| flicker | flash, go off
Coloured bulbs flashed on and off around the sign. There was a startled look on his face when the flash bulb went off.
| dangle, hang
A single electric light bulb dangled from the ceiling.
| last
These low-energy bulbs last much longer than the ordinary ones.
PHRASES
by the light of a … bulb
They sat reading by the light of a 40-watt bulb.
| the glow of a light bulb
2 round plant root
ADJ.
autumn, spring, spring-flowering, summer, summer-flowering | daffodil, hyacinth, tulip, etc. | garden, indoor | dwarf
VERB + BULB
place, plant, put in
I'm putting in some bulbs for next year. Place the bulbs close together.
| dig up, take up, uproot | grow | water
She usually waters the indoor bulbs once a week.
| force, treat
These daffodils flower so early because the bulbs have been forced.
BULB + VERB
grow | flower | be over, go over
The bulbs were over. All that remained of them were clumps of brown leaves.
| increase
Over the years the bulbs gradually increase.
| sprout | shrivel
Get the bulbs into the ground, or they will begin to shrivel.
Concise dictionary
bulbsbʌlbnoun
+a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
+electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
+a rounded part of a cylindrical instrument (usually at one end)
+lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
+a rounded dilation or expansion in a canal or vessel or organ
