Definitions
the central structure of the lens that is surrounded by the cortex
Word origin
Learned borrowing from Latin nucleus (“kernel, core”). The earliest uses refer to the head of a comet and the kernel of a seed, both recorded in Lexicon Technicum in 1704. The sense in atomic physics was coined by British scientist Michael Faraday in 1844 in a theoretical meaning.
Used in a sentence
“This collection will form the nucleus of a new library.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Cell's control center”7 letters
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