| 单词 | cis- |
| 释义 | cis- prefix (opp. TRANS- or ULTRA-). 1. on this side of; on the side nearer to the speaker or writer (cisatlantic). 2. Rom. Antiq. on the Roman side of (cisalpine). 3. (of time) closer to the present (cis-Elizabethan). 4. Chem. (of an isomer) having two atoms or groups on the same side of a given plane in the molecule. Etymology: L cis on this side of |
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