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Nucleus
01
细胞核, 核
(biology) the part of a cell that contains most of the genetic information
Example
The nucleus of a cell contains genetic material in the form of DNA, which regulates cellular activities.
细胞核包含以DNA形式存在的遗传物质，这些物质调节细胞活动。
The nucleus is surrounded by a double membrane called the nuclear envelope, which controls the passage of materials into and out of the nucleus.
细胞核周围被称为核膜的双层膜包围，核膜控制着物质进出细胞核。
02
a central or most important group within a larger organization, often responsible for leadership or key decisions
Example
The nucleus of the team consisted of senior engineers who led the development process.
The political nucleus of the movement pushed for major reforms in the education system.
03
原子核, 核
the positively charged dense center of an atom
04
神经核, 神经细胞核
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
05
核, 核心
the central structure of the lens that is surrounded by the cortex
06
彗核, 核心
the central core of a comet, which is composed of ice, dust, and rocky materials
Example
The nucleus of Comet Hale-Bopp is believed to be several kilometers in diameter.
哈雷-波普彗星的彗核直径被认为有几公里。
The nucleus of a comet contains volatile substances that vaporize when the comet approaches the Sun, creating its characteristic tail.
彗星的彗核包含挥发性物质，这些物质在彗星靠近太阳时蒸发，形成它特有的尾巴。
07
音核, 音节核心
the central and typically sonorous part of a syllable, usually occupied by a vowel or a vowel-like sound
What is a "nucleus"?
A nucleus is the central part of a syllable, usually consisting of a vowel sound. It serves as the core around which the rest of the syllable is built, and it is essential for the syllable's structure. For example, in the word "cat," the nucleus is the "a" sound, while in "beat," the nucleus is the "ea" sound. The nucleus is important in phonetics because it contributes to the overall sound and rhythm of speech, playing a key role in how syllables are formed and how words are pronounced in various languages.
