nucleus-n; 6 Senses

Sense Number 1: central structure of a eukaryotic cell, organelle

Commentary: NUCLEUS[+structure][+animate][+cell][+eukaryote][+organelle]

DNA is stored in the nucleus of every living cell of multi-celled organisms.
This new chemotherapy does less damage to the nucleus of a non-cancerous cell than earlier versions did.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: positively-charged center part of an atom

Commentary: NUCLEUS[+structure][-animate][+atom][+center][+charged][+positively]

The nucleus of an atom contains protons and neutrons.
THere are six protons in the nucleus of an ordinary carbon atom.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: central important core of a social group or activity

Commentary: NUCLEUS[+structure][+social][+core][+team/+industry/+society/+movement/+family]

These five players form the nucleus of their team.
These small banks are forming the nucleus for capital markets in that developing country.
The nucleus of family life centered around the kitchen.

WordNet 3.0 Sense Numbers: 3

Sense Number 4: the central area of an object

Commentary: NUCLEUS[+location][+region][+object]
NOTE: the general sense, of which Senses 1,2,5 are specialized, important sub-senses.

The comet's nucleus was loosely packed frozen rock and dirt.
There is evidence for the existence of a black hole at the nucleus of our galaxy.
The nucleus of a walnut is edible and is surrounded by a hard shell.
These stable rings of atoms form the nuclei of these large organic molecules.

WordNet 3.0 Sense Numbers: 4

Sense Number 5: a mass of neural cells in the brain or spine

Commentary: NUCLEUS[+structure][+animate][+cell][+mass][+neural]

With a severed spine, the nuclei along the spinal column cannot send signals to the brain.
The left hemisphere of the patient's brain had suffered injury to the caudate nucleus.

WordNet 3.0 Sense Numbers: 5

Sense Number 6: the peak of sonority in a syllable utterance

Commentary: NUCLEUS[+structure][-animate][+syllable][+sonority][+central]

Spectrograms showed the nucleus of short 'a' to be different between speakers of two English dialects.
In the Czech word 'krk' (neck), the nucleus is 'r'. (r is a sonorous liquid phoneme)

WordNet 0.0 Sense Numbers: 3