bulbs

IPA/bʌlb/
KK[bˈʌlbz]IPA/bʌlb/

bulbs — noun

  • bulbssingular
  • bulbsesplural

1. the rounded underground parts of some plants that store food and later grow into

1.名詞B1
釋義

the rounded underground parts of some plants that store food and later grow into flowers or leaves

例句

Lucía planted tulip bulbs along the path before the first frost.

plant bulbs before frost

Kenji kept the onion bulbs in a dry basket near the door.

store bulbs in a dry place

同義詞
  • corms

    similar underground storage parts, but usually solid inside rather than layered

  • tubers

    thicker underground storage parts such as potatoes, with a different growth pattern

  • rhizomes

    underground stems that spread sideways instead of forming a rounded body

文法句型

plant bulbs in autumn

store bulbs over winter

spring bulbs

用法筆記

Often used after plant names or numbers, especially in gardening talk. These bulbs are the parts planted in soil, not the whole plant above the ground.

常見錯誤

❌I planted three bulb in October.
✅I planted three bulbs in October.
💡Use the plural form after numbers.

2. the round glass ends of thermometers where the measuring liquid sits before it r

2.名詞B2
釋義

the round glass ends of thermometers where the measuring liquid sits before it rises in the tube

例句

The teacher compared the bulbs of two thermometers beside the window.

bulbs of two thermometers

Tiny cracks in the bulbs made the old thermometers unsafe to use.

cracked thermometer bulbs

同義詞
  • reservoirs

    a more technical word for the liquid-holding part of an instrument

文法句型

the bulbs of two thermometers

keep the bulbs in water

cracked thermometer bulbs

用法筆記

Usually mentioned as part of a thermometer, not as a separate object. The bulb is the sealed end that holds the liquid before it moves up the narrow tube.

3. the soft rounded ends of droppers or similar tubes that you press to pull liquid

3.名詞B2
釋義

the soft rounded ends of droppers or similar tubes that you press to pull liquid or air in and out

例句

Adina squeezed the rubber bulbs to fill the droppers with blue dye.

squeeze bulbs to fill droppers

Before the lesson, the bulbs were soaking in warm soapy water.

同義詞
  • squeeze bulbs

    a fuller technical label often used in laboratory or medical descriptions

文法句型

squeeze the bulbs

rubber bulbs on droppers

replace cracked bulbs

用法筆記

Usually attached to droppers or other narrow tubes. Pressing the bulb pushes air out, and releasing it pulls liquid or air back in.

常見錯誤

❌She pushed the tube to draw up the medicine.
✅She squeezed the bulb to draw up the medicine.
💡In this tool sense, the soft bulb is the part you press.