| 释义 |
nucle us
基本英英
环
名词 nucleus:
a part of the cell containing DNA and RNA and responsible for growth and reproductionthe positively charged dense center of an atoma small group of indispensable persons or thingsastronomy the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tailany histologically identifiable mass of neural cell bodies in the brain or spinal cordthe central structure of the lens that is surrounded by the cortex |