
好词典

源自希腊语 'poly-'(多)和 'kyklos'(环),字面意思为'多环的'。
❶ 指由多个环状结构组成的化合物或分子,常见于有机化学领域,描述分子中两个或更多环状结构相互连接的情况。
“Polycyclic aromatic hydrocarbons are common pollutants in urban air.”
(多环芳烃是城市空气中常见的污染物。)
“This drug contains a polycyclic structure that enhances its stability.”
(这种药物含有多环结构,增强了其稳定性。)
polycyclic compound — 指含有多个环状结构的化学化合物,广泛存在于药物、染料和天然产物中。
“Polycyclic compounds are often studied for their biological activity.”
(多环化合物常因其生物活性而被研究。)