nucleus
[ˈnjuːklɪəs]
n
a central or fundamental part or thing around which others are grouped; core
a centre of growth or development; basis; kernel
the nucleus of an idea
(in the cells of eukaryotes) a large compartment, bounded by a double membrane, that contains the chromosomes and associated molecules and controls the characteristics and growth of the cell
any of various groups of nerve cells in the central nervous system
the central portion in the head of a comet, consisting of small solid particles of ice and frozen gases, which vaporize on approaching the sun to form the coma and tail
the positively charged dense region at the centre of an atom, composed of protons and neutrons, about which electrons orbit
a fundamental group of atoms in a molecule serving as the base structure for related compounds and remaining unchanged during most chemical reactions
the benzene nucleus
the central point of a starch granule.a rare name for nucellus
the most sonorous part of a syllable, usually consisting of a vowel or frictionless continuant
the largest individual that is a mereological part of every member of a given class
柯林斯
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