NUCLEUS

/ˈnjuː.kli.əs/ ► audio Scrabble 9 Words With Friends 14

Scrabble letter values: N₁U₁C₃L₁E₁U₁S₁ = 9

Definition

noun a part of the cell containing DNA and RNA and responsible for growth and reproduction. — synonyms: cell_nucleus, karyon
noun the positively charged dense center of an atom.
noun a small group of indispensable persons or things. — synonyms: core, core_group
noun (astronomy) the center of the head of a comet.
noun any histologically identifiable mass of neural cell bodies in the brain or spinal cord.
noun the central structure of the lens that is surrounded by the cortex. — synonyms: lens_nucleus

“five periodicals make up the core of their publishing program”
“consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail”
“This collection will form the nucleus of a new library.”