Bulb
01
球茎, 鳞茎
the ball-shaped root of some plants that grows anew every year
例子
The gardener dug a hole and gently placed the bulb of an onion into the soil.
园丁挖了一个洞，轻轻地把洋葱的球茎放入土壤中。
02
a glass enclosure containing a filament or other light-emitting element, producing illumination when electrically powered
例子
He replaced the old bulb with a new LED one.
03
the lower part of the brain, continuous with the spinal cord
例子
Damage to the bulb can be fatal.
04
a rounded enlargement at one end of an instrument or tool, often serving as a grip or functional part
例子
The bulb of the syringe contains the liquid to be injected.
05
a rounded swelling, dilation, or expansion in a tube, canal, or organ
例子
The bulb of the urethra is enlarged in certain conditions.
06
any object with a rounded, often teardrop-like shape
例子
The sculpture had a bulb at its base.
词汇树
bulblet
bulblike
bulbous
bulb
