thecal

IPA/ˈθiː.kəl/
IPA/ˈθiː.kəl/

thecal — 形容詞

  • thecalpositive
  • more thecalcomparative
  • most thecalsuperlative

1. connected with a covering layer that surrounds and protects part of a body or or

1.形容詞C2
釋義

鞘膜的

與包覆保護構造的膜層有關

connected with a covering layer that surrounds and protects part of a body or organism.

例句

The MRI showed pressure on the thecal sac near Mei's lower back.

MRI 顯示 Mei 下背附近的鞘膜囊受到壓迫。

collocation: thecal sac

During surgery, the team protected the thecal layer around the nerve roots.

手術時，團隊保護了包住神經根的鞘膜層。

collocation: thecal layer

同義詞
  • capsular

    used for capsule-like coverings and is not limited to a theca

  • membranous

    broader and can describe any thin membrane, not a specific protective sheath

  • follicular

    more specific to follicles and does not always imply the protective outer layer

文法句型

thecal + sac

thecal + layer

thecal + cells

thecal + tissue

用法筆記

Mostly used before nouns in anatomy and medical writing, especially with sac, layer, cells, and tissue. To name the covering itself, use the noun theca rather than the adjective thecal.

常見錯誤

❌The scan showed damage to the thecal.
✅The scan showed damage to the thecal sac.
💡thecal is an adjective and usually needs a following noun.
❌The biopsy examined the theca cells.
✅The biopsy examined the thecal cells.
💡theca names the sheath itself, while thecal describes something related to that sheath.