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Nucleus
Exemples
The nucleus is surrounded by a double membrane called the nuclear envelope, which controls the passage of materials into and out of the nucleus.
Le noyau est entouré d'une double membrane appelée enveloppe nucléaire, qui contrôle le passage des matériaux vers et depuis le noyau.
02
noyau, cœur
a central or most important group within a larger organization, often responsible for leadership or key decisions
Exemples
The political nucleus of the movement pushed for major reforms in the education system.
Le noyau politique du mouvement a poussé à des réformes majeures dans le système éducatif.
03
the dense, positively charged core of an atom, made up of protons and neutrons and containing most of the atom's mass
Exemples
Scientists studied how electrons orbit the atomic nucleus.
04
a distinct cluster of nerve cells within the brain or spinal cord that performs a specific function
Exemples
Damage to the caudate nucleus can affect movement control.
05
the dense central region of the eye's lens, surrounded by the softer cortex
Exemples
The surgeon carefully removed the hardened nucleus during the procedure.
06
noyau
the central core of a comet, which is composed of ice, dust, and rocky materials
Exemples
The nucleus of a comet contains volatile substances that vaporize when the comet approaches the Sun, creating its characteristic tail.
Le noyau d'une comète contient des substances volatiles qui se vaporisent lorsque la comète s'approche du Soleil, créant ainsi sa queue caractéristique.
07
the central sound unit of a syllable, usually formed by a vowel or vowel-like element, around which other sounds cluster
Exemples
Every syllable must have a nucleus to be pronounceable.
Arbre Lexical
pronucleus
nucleus
