Histology. Of a stain or staining process: used or performed on viable cells or tissue removed from a living or recently dead organism.
Mid 19th century (in an earlier sense). From supra- + vital.
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。