lamina

/ˈlæm.ɪ.nə/ (bre, ipa) · /ˈlæm.ə.nə/ (ame, ipa) · /ˈla-mə-nə/ (ame, mw)

lamina — noun

  • laminasingular
  • laminasplural

1. a thin, flat piece of body tissue that forms one layer within a larger structure

1.名詞C2
釋義

a thin, flat piece of body tissue that forms one layer within a larger structure.

例句

The surgeon lifted the lamina of tissue away from the nerve.

a lamina of + tissue noun

Under the microscope, Hugo saw a pale lamina between the muscles.

between + plural body part

同義詞
  • layer

    more general and less technical than lamina

  • sheet

    suggests a flat spread, but not specifically body tissue

  • membrane

    narrower — often a soft, flexible tissue covering

文法句型

a lamina of [tissue]

the lamina between [body parts]

用法筆記

Usually seen in anatomy or pathology writing for a named tissue layer inside the body. Distinguish from sense 3, which is limited to the broad part of a leaf or petal.

常見錯誤

❌The doctor found a lamina on the desk.
✅The doctor found a lamina in the tissue sample.
💡this sense names a body layer, not a flat object in everyday life.

2. either of the two flat bony sections that extend backward from a vertebra and he

2.名詞C2
釋義

either of the two flat bony sections that extend backward from a vertebra and help enclose the spinal canal.

例句

Naoko's scan showed a crack in one lamina near the lower spine.

one lamina near the lower spine

The surgeon removed part of the lamina to free the trapped nerve.

remove part of the lamina

同義詞

文法句型

the lamina of a vertebra

remove part of the lamina

用法筆記

This sense is specific to spinal anatomy and usually appears when doctors describe vertebrae or surgery. Distinguish from sense 1, which is any tissue layer rather than a named bone part.

常見錯誤

❌The spine has one lamina on each vertebra.
✅The spine has two laminae on each vertebra.
💡each vertebra normally has a pair, one on each side.

3. the wide blade-like area on a leaf, or the open surface of a petal, rather than

3.名詞C2
釋義

the wide blade-like area on a leaf, or the open surface of a petal, rather than the narrow part that attaches it.

例句

The leaf lamina was broad enough to catch the morning rain.

leaf lamina as subject

Brooke compared the thick lamina of the cactus with the rose leaf.

the lamina of + plant noun

同義詞
  • blade

    common botany term for the flat part of a leaf

  • leaf blade

    clear explanatory phrase for learners

文法句型

the lamina of a leaf

broad lamina

用法筆記

Mostly used in botany when describing the flat blade of a leaf. With petals, it names the wide coloured part rather than the point where the petal attaches.

常見錯誤

❌The lamina is the stem of the leaf.
✅The lamina is the flat blade of the leaf.
💡the stem-like part is the stalk, not the lamina.