codex

• 指正式的化学物质或药物目录（药典），也指古代经典著作的未装订手稿（区别于卷轴）。

A noun referring to an official list of chemicals or medicines, or an unbound manuscript of an ancient classic, as distinguished from a scroll.

1. Official list of chemicals or medicinesC1formal

   A formal, authoritative compilation of substances, such as chemicals or pharmaceuticals, often used for reference or regulation.

   药典

   • The pharmacopoeia is a codex of approved drugs and their standards.
   • The chemical codex lists all regulated substances for industrial use.
   • Researchers consulted the codex to verify the composition of the compound.

   同义词compendiumformularypharmacopoeia

2. Ancient manuscript in book formC1formal

   A historical manuscript, typically unbound, containing classical texts, as opposed to a scroll.

   手抄本

   • The library houses a rare codex of Virgil's works.
   • Scholars studied the codex to understand ancient Roman literature.
   • The codex was carefully preserved in a climate-controlled vault.

   同义词manuscripttomevolume