
好词典

源自拉丁语 'fluere'(流动)+ '-escent'(表示开始或过程的后缀),19世纪中期首次用于描述萤石(fluorite)的发光特性。
❶ 指物质在吸收光线后能发出明亮、鲜艳的光,通常用于描述荧光灯、荧光笔等发光物体。
“She used a fluorescent marker to highlight the important text.”
(她用荧光笔标出了重要的文字。)
“The room was lit by a bright fluorescent light.”
(房间里亮着一盏明亮的荧光灯。)
fluorescent light — 指使用荧光技术发光的灯具,常见于办公室或公共场所,光线明亮但可能偏冷色调。
“The classroom was filled with the harsh glow of fluorescent lights.”
(教室里充斥着荧光灯刺眼的光芒。)
fluorescent dye — 荧光染料,一种在特定光照下会发亮的染色剂,用于科学实验或特殊标记。
“Scientists injected fluorescent dye to track the blood flow.”
(科学家们注射荧光染料以追踪血液流动。)