lobe

lobe — noun

1. a rounded section of an internal organ, such as the brain, a lung, or the liver,

1.名詞B2
釋義

a rounded section of an internal organ, such as the brain, a lung, or the liver, that is naturally separated from surrounding tissue by a visible groove or line

例句

The tumour was located in the frontal lobe of Indra's brain.

adjective + lobe: frontal lobe (brain anatomy)

Padma's doctor explained that both lungs have an upper and a lower lobe.

lobe + of: upper/lower lobe of the lung

同義詞
  • section

    more general; a section can be arbitrary, while a lobe is a naturally occurring division

  • segment

    implies a natural division like a lobe, but usually in a linear arrangement

  • division

    more formal and neutral; does not imply a rounded shape

文法句型

adjective + lobe

lobe + of + [body part]

用法筆記

In medical writing, 'lobe' is usually paired with a positional adjective (frontal, temporal, occipital for the brain; upper, lower, middle for the lungs) or with 'of' naming the organ.

常見錯誤

❌The cancer spread to another lobe.
✅The cancer spread to another lobe of the lung.
💡In medical contexts, always specify which organ the lobe belongs to unless it is already clear from earlier discussion.
❌He has a damaged lobe in his brain.
✅He has a damaged area in the frontal lobe of his brain.
💡'Lobe' is a normal anatomical division, not an abnormality; describe the problem separately from the location.

2. the soft, rounded lower part of the outer ear

2.名詞B1
釋義

the soft, rounded lower part of the outer ear

例句

Tamar wore a small silver ring in each of her earlobes.

earlobe + earring/piercing context

Brandon gently rubbed his earlobe while he thought about the difficult question.

同義詞
  • earlobe

    the standard term; 'lobe' alone is a shortened form used mostly in medical records

文法句型

earlobe

possessive + earlobe

adjective + earlobe

用法筆記

In everyday English, 'earlobe' is far more common than 'lobe' alone when referring to the ear. Using just 'lobe' for the ear part sounds unnatural outside of medical shorthand.

常見錯誤

❌She pierced her lobes.
✅She pierced her earlobes.
💡'Lobe' alone is unclear; always use 'earlobe' for the ear part.
❌My lobe is red and sore.
✅My earlobe is red and sore.
💡Same reason; 'earlobe' is the natural word in everyday speech.

3. a projecting segment of a leaf that pushes outward from the centre, with a visib

3.名詞C1
釋義

a projecting segment of a leaf that pushes outward from the centre, with a visible gap between it and the next segment

例句

The large oak leaf has several rounded lobes along its dark green edges.

rounded lobes — describing leaf shape

Feng pointed out the deep spaces between the lobes of the maple leaf.

同義詞
  • segment

    a more general term for any part of a leaf, not only the outward-projecting parts

  • projection

    emphasises the outward extension; less technical than 'lobe'

文法句型

lobe + of + [leaf type]

number + lobe(s)

adjective + lobe

用法筆記

This sense belongs to botany. It describes a specific leaf shape category — 'lobed leaves' — where the leaf edge has deep, rounded or pointed projections separated by clefts or sinuses.

常見錯誤

❌The leaf has a lobe.
✅The leaf has several lobes.
💡Leaves of lobed plants (oaks, maples, ivies) typically have multiple lobes, not just one.
❌The lobe of the leaf is sharp.
✅The lobes of the oak leaf are rounded, but the lobes of a maple leaf are pointed.
💡The shape of the lobes varies by plant species; be specific about which plant you are describing.