1Effective against a wide range of organisms, diseases, etc.
2Of, relating to, or producing light or sound that covers a wide range of wavelengths or frequencies.
1950s; earliest use found in Analysts Journal. From wide + spectrum.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。