好词典

arachnoid

UK //əˈræk.nɔɪd//US //əˈræk.nɔɪd//

词源

源自希腊语 'arachnē'(蜘蛛)和 '-oid'(类似),因其结构类似蜘蛛网而得名。

noun

❶ 蛛网膜,指覆盖大脑和脊髓的三层脑膜中的中间层,因其网状结构类似蜘蛛网而得名。

“The arachnoid is one of the three meninges that protect the brain and spinal cord.”

(蛛网膜是保护大脑和脊髓的三层脑膜之一。)

“A tear in the arachnoid can lead to cerebrospinal fluid leakage.”

(蛛网膜撕裂可能导致脑脊液泄漏。)

❶ 蛛形纲动物,指属于蛛形纲的生物,如蜘蛛、蝎子等。

“Spiders and scorpions are both classified as arachnoids.”

(蜘蛛和蝎子都属于蛛形纲动物。)

“Arachnoids have eight legs and two main body segments.”

(蛛形纲动物有八条腿和两个主要身体部分。)

同义词:spider-like, arachnid, membrane

adjective

❶ 蛛网状的,形容类似蜘蛛网的结构或外观。

“The arachnoid trabeculae form a delicate network within the subarachnoid space.”

(蛛网膜小梁在蛛网膜下腔形成精细的网络结构。)

“The artist created an arachnoid pattern on the sculpture.”

(艺术家在雕塑上创作了蛛网状的图案。)

同义词:weblike, netlike, lacy

常见短语

arachnoid membrane — 蛛网膜,特指覆盖中枢神经系统的薄膜,具有保护和缓冲作用。

“The arachnoid membrane helps cushion the brain from impacts.”

(蛛网膜有助于缓冲大脑免受冲击。)

arachnoid granulations — 蛛网膜颗粒,指蛛网膜突入硬脑膜窦的结构,参与脑脊液的吸收。

“Arachnoid granulations allow cerebrospinal fluid to re-enter the bloodstream.”

(蛛网膜颗粒使脑脊液能够重新进入血流。)